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UPscaler
25th March 2010, 01:56 AM
I read a few good reviews on here about the $10 keychain cams from china.

I'm going to buy one, and I needed to make sure that it's the right one.

http://cgi.ebay.com/Spy-Camera-Key-Chain-Camcorder-Video-Cam-720x480-30FPS_W0QQitemZ160414582568QQcmdZViewItemQQptZLH_D efaultDomain_0?hash=item2559744728#ht_5313wt_1004

Also, How should I mount it onto rockets? I understand tape works fine with smaller stuff, but should I come up with some kind of mount for higher velocity rockets?

I was thinking when we build our 6x Alpha I can just build a payload bay and a mirror hood, and use my actual HD camcorder.

any suggestions are appreciated!

Thanks!
-Up

mamba max1
25th March 2010, 02:24 AM
Hey,

I use a keychain camera on my rockets and R/C 1/8 truck.

A few vids on my rockets:

http://www.youtube.com/watch?v=qfLyAuacnRY

http://www.youtube.com/watch?v=px-x3wzl5os


Really can't beat the quality for the price. :D Because they are so cheap, its not so bad if you loose one. Downside is you have to retrieve your rocket to get the video. I had to wait 5 days to get my first video lol.

You have a good one linked. You want that pixel size, and the 30fps. I just use electrical tape to secure it to the side of the rocket.

Keep in mind, that you will also need a micro SD card. An 8G card holds an hour of video, but the camera's battery lasts about 2hr.

The cameras seem to accept shock well, I've had a few very rough landings with mine on it an it keeps on ticking. :)

kullas
25th March 2010, 03:09 AM
These are alot of fun here is a thread that has alot of info This could be fun (http://www.rocketryforum.com/showthread.php?t=6119)

Winston
25th March 2010, 03:32 AM
Here's an excellent keychain video camera tech info site describing what to look for. There are a bunch of different models that look virtually identical but which perform differently:

http://chucklohr.com/808/

Based upon the info found there, this camera fits the specs of the preferred keychain camera #3 (while not in keychain form, it's still very small):

http://www.dealextreme.com/details.dx/sku.32022

And the file name used as well as the font and color of the time stamp in this video demo from that camera:

http://www.youtube.com/watch?v=m5YGnYjaMQk

pretty much confirm that it uses the desired chipset with its associated and desired SPCA driver.

Vanel
25th March 2010, 06:11 AM
I have one of these critters, but can't figure out how to set the time. Something to do with a SetTime text file, but I cannot understand the very poor english and my attempts so far have resulted in no time change in the camera.

Anyone done this?


Hey,

I use a keychain camera on my rockets and R/C 1/8 truck.

A few vids on my rockets:

http://www.youtube.com/watch?v=qfLyAuacnRY

http://www.youtube.com/watch?v=px-x3wzl5os


Really can't beat the quality for the price. :D Because they are so cheap, its not so bad if you loose one. Downside is you have to retrieve your rocket to get the video. I had to wait 5 days to get my first video lol.

You have a good one linked. You want that pixel size, and the 30fps. I just use electrical tape to secure it to the side of the rocket.

Keep in mind, that you will also need a micro SD card. An 8G card holds an hour of video, but the camera's battery lasts about 2hr.

The cameras seem to accept shock well, I've had a few very rough landings with mine on it an it keeps on ticking. :)

BEC
25th March 2010, 06:28 AM
There's a big thread on YORF about these and other inexpensive eBay cameras (for which I can't give you the link right now because YORF is down) and a HUGE one on RC Groups here: http://www.rcgroups.com/forums/showthread.php?t=1115052

The ones you want are the versions that take separate micro SD cards rather than those with memory built in. It looks like the one you linked to is of that type.

I have flown them both on a rocket (taped to my Fliskits Triskelion with a little bit of shaped foam to adapt to the BT-55 curvature) and on a small RC airplane. Amazing quality for the price.

The one rocket flight I've edited down and posted is here: http://www.youtube.com/watch?v=9_PdeNmZxL4

MattieShoes
25th March 2010, 07:04 AM
There's a big thread on YORF about these and other inexpensive eBay cameras (for which I can't give you the link right now because YORF is down) and a HUGE one on RC Groups here: http://www.rcgroups.com/forums/showthread.php?t=1115052

The ones you want are the versions that take separate micro SD cards rather than those with memory built in. It looks like the one you linked to is of that type.

I have flown them both on a rocket (taped to my Fliskits Triskelion with a little bit of shaped foam to adapt to the BT-55 curvature) and on a small RC airplane. Amazing quality for the price.

The one rocket flight I've edited down and posted is here: http://www.youtube.com/watch?v=9_PdeNmZxL4


Wow, that is pretty amazing... Was the parachute the culprit?

BEC
25th March 2010, 07:28 AM
Wow, that is pretty amazing... Was the parachute the culprit? Yes as you can see in the frame grab at the end. And, of course, too long of a delay. I've since flown it with a C6-3 with rather less "interesting" results. :)

RoyAtl
25th March 2010, 07:35 AM
Yes as you can see in the frame grab at the end. And, of course, too long of a delay. I've since flown it with a C6-3 with rather less "interesting" results. :)

That fin was wobbling on the way up. It probably would've detached on landing if the parachute hadn't gotten to it first.

MattieShoes
25th March 2010, 08:19 AM
I bought one of these a couple weeks ago and it just came in the mail today. I'm gonna tape it to my Barracuda and see how it goes this weekend. I think I ended up with a #2 with a micro-SD slot. In case anybody is curious, it weighs about 14 grams without the keychain portion or micro-SD card. If you look at a new five dollar bill, it's roughly the size of lincoln's head, down to the strip where his name is at the bottom.

Scott Evil
25th March 2010, 10:45 AM
Here's an excellent keychain video camera tech info site describing what to look for. There are a bunch of different models that look virtually identical but which perform differently:

http://chucklohr.com/808/

Based upon the info found there, this camera fits the specs of the preferred keychain camera #3 (while not in keychain form, it's still very small):

http://www.dealextreme.com/details.dx/sku.32022

And the file name used as well as the font and color of the time stamp in this video demo from that camera:

http://www.youtube.com/watch?v=m5YGnYjaMQk

pretty much confirm that it uses the desired chipset with its associated and desired SPCA driver.

Thanks for posting these links Winston. I've been worried about un-scrupulousness and product variability amongst overseas vendors.

I just ordered one from here...

http://cgi.ebay.com/Key-Chain-Spy-Camera-DVR-Covert-Video-Audio-Recorder_W0QQitemZ250498483220QQcmdZViewItemQQptZL H_DefaultDomain_0?hash=item3a52df8414

...hopefully I got it right.

Evo666
25th March 2010, 11:28 AM
I might have jump on this bandwagon too.

luke strawwalker
25th March 2010, 03:59 PM
Checked out the ebay link... looks good and the price is right-- though you DO tend to get what you pay for, even with these things... but for $5.98 how can you go wrong?? That won't even buy you lunch nowdays! :jaw:

Check out these links for more info, especially Chuck Lohr's site, as he has just about everything you'd ever want to know about these things on his site...

Here's the links:

http://www.chucklohr.com/808/

http://forums.parallax.com/forums/default.aspx?f=15&m=378648

http://www.rcgroups.com/forums/showthread.php?t=1115052

That aught to get you started... the RC Groups thread is LONG but there is literally TONS AND TONS of information in there... I follow that thread regularly because there is SO much information posted (and cool vids).

Good luck and be sure and post your experiences with this Ebay vendor... that price is fantastic:cheers:... hope he's not selling stuff other vendors throw away... LOL:)

Later and good luck! OL JR :)

luke strawwalker
25th March 2010, 04:03 PM
One other thing I forgot to mention-- buy your micro SD cards from reputable (probably local, or newegg.com) sources-- a lot of the TF cards coming with these things are fake memory and not up to par... more info on that at the chuck lohr site...

Some of the flash cards have been faulty or tampered with so that to Windows, it appears to be a 4 or 8 gig card, and Windows says it is (because that's what it tells Windows) but when tested with a secondary test program they turn out to be 1 gig cards... or other than advertised...

Caveat emptor... OL JR :)

luke strawwalker
25th March 2010, 04:14 PM
I have one of these critters, but can't figure out how to set the time. Something to do with a SetTime text file, but I cannot understand the very poor english and my attempts so far have resulted in no time change in the camera.

Anyone done this?

This thread details how to do it several different times, for several different types of cameras... there are several different ways and tricks to doing it depending on the type of camera and the model.

Good luck! OL JR :)


http://www.rcgroups.com/forums/showthread.php?t=1115052

luke strawwalker
25th March 2010, 04:32 PM
Thanks for posting these links Winston. I've been worried about un-scrupulousness and product variability amongst overseas vendors.

I just ordered one from here...

http://cgi.ebay.com/Key-Chain-Spy-Camera-DVR-Covert-Video-Audio-Recorder_W0QQitemZ250498483220QQcmdZViewItemQQptZL H_DefaultDomain_0?hash=item3a52df8414

...hopefully I got it right.

myzone50 has good ratings from the RCGroups thread people...

THere is a certain amount of hit and miss with these things-- they're probably "factory seconds" or rejects and stuff that didn't pass muster quality-wise for shipment to big vendors. You CAN find them from other sources online, but of course they're higher. I don't know that you'll really get any higher quality by paying more, but your chances probably improve somewhat. There are similar type cams with password nonsense and stuff like that going for as much as $300 online-- which is a total ripoff IMHO.

Some folks have reported getting them and having them not charge, dead out of the package, not recording right, lenses out of focus, the hot glue that holds the camera to the circuit board broken loose (easy to fix by remelting the glue, but requires you to open the case), various other firmware problems inside the camera's guts, Lipo's crapping out after a short time, etc.

Most sellers will make it good if you get it and it doesn't work, but after that you're pretty much on your own. These things don't seem to have a long life expectancy-- some do better than others, but again it' shit or miss... just don't expect this to be a purchase you can hand down to your grandchildren...

Good luck! OL JR :)

Winston
25th March 2010, 09:40 PM
Here's a photo of the camera I bought here:

http://www.dealextreme.com/details.dx/sku.32022

It fits the specs of the preferred keychain camera #3 on the tech page I posted a link to. I'll post videos on Youtube after I get around to making some (there's already one made by another owner that I linked to in a previous post).

As you can see, even though it's not a keychain cam, it's still extremely small and the stock orientation of the video sensor will make it easy to insert into a rocket from the side with the sensor pointed downward. There's even an anchoring point that's intended for a lanyard that could be used to anchor the cam to the rocket. I'm sure that without its case it's going to be significantly smaller, thinner and lighter still.

UPscaler
25th March 2010, 11:49 PM
thanks for the info guys!

I ordered one yesterday.

So all I do is tape it to the side of the rocket?

mamba max1
26th March 2010, 12:50 AM
That's what I did with my keychain cam. :D

When you tape it, do not tape it over the first two buttons, it will turn it off. Just tape it over the rear half of the camera. :)

Rocketjunkie
26th March 2010, 02:19 AM
I just got in 3 ($10.80 each, $6 each for the 2GB MicroSD cards). It took about 3 weeks. Testing gives 25 min of video to fill the card. Mine are type 3 http://chucklohr.com/808/

cwbullet
26th March 2010, 02:55 AM
There are some instructions for the key chain cam.

Vanel
28th March 2010, 02:37 AM
Finally figured out how to set the date/time on my keychain camera.

Today at the local TARC launch, I taped this little keychain cam to the outside of my scratch built Salvage-90, which flew about 10:30, and then to my Fliskits Deuce's Wild, which flew just after 1. Got home and downloaded the movies into my computer for processing, and you can see the results of the Deuce flight at the link below (uploaded it to YouTube, but it's still processing :()

http://gallery.me.com/cookewj#100052

The movie above is at standard 640x480 quality, but I must say I am pretty pleased with this purchase.

Sometimes cheap is good :)

Pantherjon
28th March 2010, 05:28 AM
I didn't get any video:confused2: some good audio though!

Evo666
28th March 2010, 12:11 PM
I didn't get any video:confused2: some good audio though!

I got video and sound. :p

Pantherjon
28th March 2010, 02:38 PM
Okay..Got it to play the video after I downloaded it and opened in iTunes..:o

Kewl:cool:Next time rotate the camera placement 90 degrees so you can get both smoke trails from the motors! ;)

mn-rocketry
28th March 2010, 03:21 PM
I flew my old Estes Longshot 2-stager yesterday with a keychain cam taped onto the side. Videos are at
http://www.youtube.com/watch?v=qPfTv9pSPh8
http://www.youtube.com/watch?v=vrb1iSgmxBI

I see that I am getting some duplicate frames. I'll have to try a different micro-sd card and see if that helps.

I also have a couple rocket videos up using the "gum" cameras.
http://www.youtube.com/user/mnrocketry

Alan

UPscaler
28th March 2010, 03:52 PM
I flew my old Estes Longshot 2-stager yesterday with a keychain cam taped onto the side. Videos are at
http://www.youtube.com/watch?v=qPfTv9pSPh8
http://www.youtube.com/watch?v=vrb1iSgmxBI

I see that I am getting some duplicate frames. I'll have to try a different micro-sd card and see if that helps.

I also have a couple rocket videos up using the "gum" cameras.
http://www.youtube.com/user/mnrocketry

Alan

Very nice videos. I like how straight the rocket was when it staged. That doesn't happen too often. :p

DAllen
28th March 2010, 08:12 PM
Here's what happens when the silly rocket wants to be a submarine:

gS5DQfm7L7k

Not sure if the camera is going to make it. It's currently not working quite right.

UPscaler
28th March 2010, 09:40 PM
Here's what happens when the silly rocket wants to be a submarine:

gS5DQfm7L7k

Not sure if the camera is going to make it. It's currently not working quite right.

Mental note, keep away from water.

Luckily we don't have any water at our launch site, just gopher holes.:cheers:

DAllen
28th March 2010, 09:44 PM
Mental note, keep away from water.

Luckily we don't have any water at our launch site, just gopher holes.:cheers:

We don't have much either - just a 3' wide drainage ditch running the length of our field that usually has about 6" of water in it most of the year. Out of the 300 or so acres the rocket could've landed in it chose that spot. :bangpan:

That's rocketry for ya'.

UPscaler
28th March 2010, 10:03 PM
We don't have much either - just a 3' wide drainage ditch running the length of our field that usually has about 6" of water in it most of the year. Out of the 300 or so acres the rocket could've landed in it chose that spot. :bangpan:

That's rocketry for ya'.

Well, then that deserves ten points!

MattieShoes
29th March 2010, 06:14 AM
I used mine for the first time yesterday.
ssUuS8CM1lU

Don't know why it spun like a top. And the delay was way short too... I'm guessing the igniter lit the delay rather than the motor, so the delay was halfway burned before the motor even started

Mikus
29th March 2010, 04:25 PM
Finally figured out how to set the date/time on my keychain camera.

How? I have one I still can't get set correctly. :mad:

Vanel
30th March 2010, 12:44 AM
How? I have one I still can't get set correctly. :mad:

I used the instructions here (http://chucklohr.com/808/#SetDateTime), and tried the methods until one worked. In my case, it was the technique for Camera #5.

bobkrech
31st March 2010, 02:22 AM
...Don't know why it spun like a top. And the delay was way short too... I'm guessing the igniter lit the delay rather than the motor, so the delay was halfway burned before the motor even started
Rockets usually spin if the fins are not mounted parallel to the airframe.

You are correct on why the delay was short. Your igniter was energetic enough to ignite the delay column promptly, but not energetic enough to ignite the propellant grains promptly.

It's not a bad idea to lightly sand the bore of APCP propellant grains to expose fresh, unoxidized propellant. This will increase the surface area and make the ignition process much quicker.

Bob

Kira_Majeric
31st March 2010, 03:00 AM
We had to get one. Just ordered and paid for, have to wait 3-4 weeks. That sucks. Can't Wait to play with it. ^_^

MattieShoes
31st March 2010, 05:32 AM
Rockets usually spin if the fins are not mounted parallel to the airframe.

You are correct on why the delay was short. Your igniter was energetic enough to ignite the delay column promptly, but not energetic enough to ignite the propellant grains promptly.

It's not a bad idea to lightly sand the bore of APCP propellant grains to expose fresh, unoxidized propellant. This will increase the surface area and make the ignition process much quicker.

Bob

The fins are straight -- They're through the wall into pre-cut slots and a fin-lock system. I'm fairly certain it didn't spin on a previous flight, so I think I'll chalk it up to a combination of the camera itself and high winds, and try again at the next launch. :-)

I'll try a light sanding next time... Incidentally, that was the second igniter -- the first one didn't light anything. With other launches, then my igniter failure, then other launches, then mine, the video file was over 2 gig! My copperhead success rate is down to 60% :-(

Mikus
31st March 2010, 04:52 PM
I used the instructions here (http://chucklohr.com/808/#SetDateTime), and tried the methods until one worked. In my case, it was the technique for Camera #5.

Oh sweet, thanks! Hopefully one of those will get it done. :)


It worked! The technique for camera #3 did it for me. Thanks again!

UPscaler
2nd April 2010, 11:49 PM
WOW
I got my keychain cam today. I highly recommend the seller I bought it from. I'll come back with a link.

It only took 7 days to get from Hong Kong to Boise Idaho:y:

Unfortunately the launch for tomorrow has been postponed so I have to wait another week to test it.

Edit:
Can someone help we with a little troubleshooting? When I plug it into the USB cord, the little yellow light just flashes slowly. It doesn't bring anything up on the computer, and it shows that nothing is plugged in.

Mike Howie
3rd April 2010, 04:16 AM
I've just bought one myself. Questions:

1)Do you need a micro SD card? If I don't have the card in, it doesn't show
on my computer. With the card in, it acts as a new disk drive. (seen under
"My Computer.)

2) Could the camera be charging? The instructions for my camera say slow
blinking on plugging in the USB, the camera is charging.

JDcluster
3rd April 2010, 05:21 AM
Yes, you do need the Micro SD card in it to work.
There are other models that have built in memory, but the QC isn't that good with allot of them & some times it's a crap shoot.

See these threads from a couple months ago:
http://www.rocketryplanet.com/forums/showthread.php?t=5022

http://www.rocketryplanet.com/forums/showthread.php?t=4997


JD



I've just bought one myself. Questions:

1)Do you need a micro SD card? If I don't have the card in, it doesn't show
on my computer. With the card in, it acts as a new disk drive. (seen under
"My Computer.)

2) Could the camera be charging? The instructions for my camera say slow
blinking on plugging in the USB, the camera is charging.

dlb
3rd April 2010, 06:15 AM
So far I had good luck with the kind that needs SD memory, got (3) of those so far, all have had a few launches. The type with internal memory have died on me, (2) to date.

If you have the external SD type, your computer will see nothing if none is installed, and all of mine flash when charging , then the light stays on all the time when done. About 2 hours

Many different type of keychain cams out there, from the same Ebay vendor I got (2) different keychain cams, some have a red and blue led and some have a yellow led. SOme have lousy sound, the red/blue led one, has great sound.

I use 2 GIG SD card, BestBuy had them for 8 dollars. Good for about 2 hours.

UPscaler
3rd April 2010, 07:11 AM
I've just bought one myself. Questions:

1)Do you need a micro SD card? If I don't have the card in, it doesn't show
on my computer. With the card in, it acts as a new disk drive. (seen under
"My Computer.)

2) Could the camera be charging? The instructions for my camera say slow
blinking on plugging in the USB, the camera is charging.

Yes you do! Thank you too, I guess it was just charging. I let it sit for a while then played with it. It's really nice! The only con is that stupid time stamp. :bangbang:

luke strawwalker
5th April 2010, 08:15 PM
Yes you do! Thank you too, I guess it was just charging. I let it sit for a while then played with it. It's really nice! The only con is that stupid time stamp. :bangbang:

Over on the RC GRoups thread there are some posts about a new program or add-on that will basically erase the timestamp quite effectively-- MUCH better than some of the "logo-erase" type programs which kinda blur over it...

Might want to check it out... :) OL JR :)

DAllen
5th April 2010, 09:22 PM
Over on the RC GRoups thread there are some posts about a new program or add-on that will basically erase the timestamp quite effectively-- MUCH better than some of the "logo-erase" type programs which kinda blur over it...

Might want to check it out... :) OL JR :)

You gotta linky handy there mister? Pretty please?

-Dave

Mikus
6th April 2010, 01:53 PM
You gotta linky handy there mister? Pretty please?

-Dave

I think he means the links he posted in post#13 of this thread. :D

Sandy H.
6th April 2010, 02:43 PM
I use 2 GIG SD card, BestBuy had them for 8 dollars. Good for about 2 hours.

I really thought I had similar performance on mine when just testing it out. Somewhere along the way, though, something changed and I only get about 16 minutes with the 2 gig card. The files are huge also (1.9 gb), so its not my card being full or having a format issue.

Anybody else getting 16 minutes with a 2 gig card?

Sandy.

Rocketjunkie
6th April 2010, 07:26 PM
Anybody else getting 16 minutes with a 2 gig card?
I get about 20 min.

UPscaler
7th April 2010, 03:32 AM
I get about 20 min.

Are you using one of those TF cards? Because I have a 126mb sandisk in mine and I'm getting about 5 minutes.

MattieShoes
7th April 2010, 08:27 AM
21 minutes in 2.06 GB for me. But I bought an 8GB card...

UPscaler
7th April 2010, 10:05 PM
I think I'm going to get a couple 8g cards and just bring the laptop to the launches. I'll probably order another camera so my dad and I can get some good drag race footage.

Kira_Majeric
8th April 2010, 12:22 AM
Ours just came in the mail!! So, I had to twist my boyfriend's are to agree to a launch this weekend. ^_^

UPscaler
8th April 2010, 12:55 AM
Ours just came in the mail!! So, I had to twist my boyfriend's are to agree to a launch this weekend. ^_^
Nice! Mine shipped a lot faster than I expected. Our launch got postponed until this weekend. So I taped mine on a kite and got some interesting footage of that.

Kira_Majeric
8th April 2010, 02:27 AM
Nice! Mine shipped a lot faster than I expected. Our launch got postponed until this weekend. So I taped mine on a kite and got some interesting footage of that.

My boyfriend just got me a cute little RC buggie, I think I am going on tape it on that, too. ^_^

UPscaler
10th April 2010, 02:27 AM
My boyfriend just got me a cute little RC buggie, I think I am going on tape it on that, too. ^_^

haha. I already put mine on a kite and will probably tape it on one of my dad's RC planes.


Does anyone know how I can edit AVI files without destroying the quality. Movie maker saves then as wmv and it sucks.

Vegas pro only gets the audio out of AVI. No picture. Any help is appreciated.

Kira_Majeric
10th April 2010, 05:43 AM
haha. I already put mine on a kite and will probably tape it on one of my dad's RC planes.


Does anyone know how I can edit AVI files without destroying the quality. Movie maker saves then as wmv and it sucks.

Vegas pro only gets the audio out of AVI. No picture. Any help is appreciated.


Do you have a file converter for video? My friend recommended Apex Video Converter. I am not sure if it will help you as I have not had the time to run my car, but I will try to play with it this weekend.

UPscaler
10th April 2010, 02:51 PM
Do you have a file converter for video? My friend recommended Apex Video Converter. I am not sure if it will help you as I have not had the time to run my car, but I will try to play with it this weekend.
I was going to try conversion, I just don't want to trash the files. I'll test it when we get back, I've got rockets to fly today. :D

bguffer
10th April 2010, 03:04 PM
I think i read in one of the rocketry forums that someone was using SUPER to do lossless conversion between 2 video file formats.

Bob

Kira_Majeric
10th April 2010, 10:52 PM
I was going to try conversion, I just don't want to trash the files. I'll test it when we get back, I've got rockets to fly today. :D


I have an external hard drive. this way I have have the file on both Internal and external and mess with one of them with out effecting the other. Or you could transfer a cope of the file to a flash drive. Either way, it will protect the original. It does take up room, but I clean that up after I get the finished video that I like.

UPscaler
10th April 2010, 11:44 PM
I have an external hard drive. this way I have have the file on both Internal and external and mess with one of them with out effecting the other. Or you could transfer a cope of the file to a flash drive. Either way, it will protect the original. It does take up room, but I clean that up after I get the finished video that I like.

I fixed it. I downloaded a couple codecs and it worked so I'll be throwing the video together for the next couple hours.

The camera made my arcas kind of unstable. We tried to beat the motor block and hook out of my mustang with a dowel and rubber mallet, so I could fly a long burn KBA G40. It didn't happen though.

MattieShoes
19th April 2010, 05:54 AM
A couple more from the keychain cam...

My Barracuda spun like a top again, on a G76-7G AT reload.
rlf1eNam4fo

My dad's Initiator didn't spin though. I'm going to try taping the camera down closer to the fins to see if that makes any difference.
1poEImrEN-8

rockosrocket
19th April 2010, 07:17 AM
I just got my key chain cameras in from China and taped it to my AT Arreaux with a G64-10W. Take a look.
fp3Z1MudeU4

Winston
19th April 2010, 05:08 PM
I just got my key chain cameras in from China and taped it to my AT Arreaux with a G64-10W. Take a look.

http://www.youtube.com/watch?v=fp3Z1MudeU4&feature=channel
Very nice. And it looked you got a near-perfect apogee parachute deployment.

Here's the vendor I got mine from:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=140400567016

$11.15 shipped and it's the type with the preferred electronics (assuming all of the ones he's offering are from the same manufacturer).

UPscaler
19th April 2010, 10:14 PM
Mine was $10.66.

Does anyone else seem to have problems with HUGE video files?

Kira_Majeric
20th April 2010, 12:53 AM
This is the auction we got ours from:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=160414582568&ssPageName=STRK:MEWNX:IT

First thing I did was put it on my 1/16 RC Nitro Buggie. I broke the camera when I crashed. My boyfriend was able to fix it, and is going to make it so I can not break it again.

IkMxlOYRJWY

We liked the vendor so much that we have two more cameras coming. Hoping to get them this week. We flew some rockets this weekend, I'm going to post those after I clean up the clips.

rokitflite
20th April 2010, 12:57 AM
The cat was the best part:D.

Kira_Majeric
20th April 2010, 04:50 AM
He was mad at me for a while. ^_^


The cat was the best part:D.

Kira_Majeric
20th April 2010, 05:12 AM
V9hCawSYCAU

Kira_Majeric
20th April 2010, 05:13 AM
3Ubnjq_ujII

MattieShoes
20th April 2010, 06:16 AM
Mine was $10.66.

Does anyone else seem to have problems with HUGE video files?

Yes, but I don't think it's that big of a problem... About 100 meg per minute is what mine does. An 8 gig micro-SD card was like 15 dollars, so that's what, 80 minutes of video? I don't even know if the battery would last that long. Once it's on the computer, the videos can be cut down to remove any extra time, like 15 minutes of sitting in a field waiting to be retrieved, for instance... Or they could be converted to a less bulky format.

The devices are small and simple, they probably don't have the processing power to encode videos in a small file in realtime. If they had the processing power, then they'd need more batteries, and they'd be more heavy, and... Well, you see how it is. Better to do it on your home PC!

Night Tripper
23rd April 2010, 10:11 PM
Wow! Lots of good information and videos on this thread. I just ordered two of the keychain cameras today. I'm looking forward to playing around with them as soon as the shipment arrives from Hong Kong.

The video these cameras provide is superior to that of my Estes Oracle. Plus, it has audio. I can't wait to tape one on!

:headbang:

BEC
23rd April 2010, 10:54 PM
That fin was wobbling on the way up. It probably would've detached on landing if the parachute hadn't gotten to it first.

Sorry not to reply sooner.... yes, I saw that. It landed on that fin on a prior flight. I don't necessarily think it would've come off in that flight had the 'chute not "helped" remove it but certainly in a subsequent one if I didn't notice it was a bit "soft" and fix it first.

It has since been replaced. Launching this camera was one thing I didn't do at OROC last weekend. I should've, though.

RoyAtl
23rd April 2010, 11:12 PM
My KeyChain camera arrived two days ago, mostly DOA (now totally dead).

The seller has given me a couple of things to try. We'll see.

mv1371
23rd April 2010, 11:16 PM
Kira, that is a really cool paint job on your Screaming Eagle!:clap:

Kira_Majeric
24th April 2010, 01:19 AM
Kira, that is a really cool paint job on your Screaming Eagle!:clap:

Thank you. ^_^

Kira_Majeric
24th April 2010, 01:21 AM
We now have 4 of them. I broke one on my RC Car, so I decided we needed more. My boyfriend was able to fix it, and he is going to "Bulletproof" them with epoxy. The vendor I used was great, and it seems to be the camera that gets the highest rating.

Rocketman248
24th April 2010, 03:18 AM
I finally broke down and ordered one. Hopefully it will be here by May 15th so I can put it on my L2 bird!

UPscaler
24th April 2010, 03:49 AM
Sweet videos Kira!

also, looking forward to seeing that cam on the L2 rocket. Mine took exactly one week.

Dad and I are letting off three kosdon motors tomorrow. In two brand new rockets. Should be some cool video.

My dad's is his L1 rocket. He is just giving it a test on a long burn G40.

tonypv
25th April 2010, 12:29 PM
Here's my first video with my key chain cam.
A Deuces Wild with 2 Quest C6-5s.
<object width="480" height="385"><param name="movie" value="http://www.youtube.com/v/5CtD_IzOjP0&hl=en_US&fs=1&rel=0"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/5CtD_IzOjP0&hl=en_US&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="480" height="385"></embed></object>

rockosrocket
26th April 2010, 04:15 AM
Here are a couple more videos with the Key Chain Cam taped to the side. The first one is with a G40-10W just after sunset and the second is with a the NEW G80-13T which hit 3100'. At around 2500' you can see it getting into the cloud and some rain but it was completely dry at the ground.
a-2wWBlpNfQ

3pkHHfDK5Xo

UPscaler
26th April 2010, 04:22 AM
your youtube links are mangled.

UPscaler
26th April 2010, 04:32 AM
How do I post the video itself on the thread like the other guys did?

Sorry, still a noob at this.

Just take everything after Watch?v= and put it in between
(youtube) (youtube/)*

like so
42n8tjXjfmw

*replace ()'s with []'s

rockosrocket
26th April 2010, 04:36 AM
Just take everything after Watch?v= and put it in between
(youtube) (youtube/)*

*replace ()'s with []'s

Cheers Dude!

I think I got'er now.

OverLord
28th April 2010, 04:32 AM
Here's my first video with my key chain cam.
A Deuces Wild with 2 Quest C6-5s.
<object width="480" height="385"><param name="movie" value="http://www.youtube.com/v/5CtD_IzOjP0&hl=en_US&fs=1&rel=0"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/5CtD_IzOjP0&hl=en_US&fs=1&rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="480" height="385"></embed></object>

Now that was cool! Nice video!

Mike

Mike Howie
30th April 2010, 07:47 AM
On 04/24/10 at the NARHAMS launch, I launched three of these keychain
cameras. I must have done something wrong, because I only got one usable
video. On this video I taped the camera to the nose of a Quest Magnum.
11340577

it worked in the test area

Evo666
30th April 2010, 11:41 AM
Can't wait for mine to arrive.

scsager
2nd May 2010, 08:37 AM
Thanks for all the info and amazing video in this thread. :cool:
I have 2 cameras on order now. What kind of micro SD cards will work? Does it need to be a "plain" SD or will SDHC work. The SDHC kind seem to be easier/cheaper/more plentiful to find.

Example:

http://www.newegg.com/Product/Product.aspx?Item=N82E16820183246

Thanks again,
-Scott

JDcluster
3rd May 2010, 12:30 AM
I had a 1 GB for my phone & then bought two 4 GB later on.
I then swapped the 1 gig for the 4 for my phone & it saved me today...
I had trouble with the 1 GB at the pad, so I just pulled the 4 out of my phone & everything worked!

Video to follow.....

<object width="480" height="385"><param name="movie" value="http://www.youtube.com/v/hfimXVHXooY&hl=en_US&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/hfimXVHXooY&hl=en_US&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="480" height="385"></embed></object>



It came out great!



JD

Kira_Majeric
3rd May 2010, 05:19 AM
Nice flight.


I had a 1 GB for my phone & then bought two 4 GB later on.
I then swapped the 1 gig for the 4 for my phone & it saved me today...
I had trouble with the 1 GB at the pad, so I just pulled the 4 out of my phone & everything worked!

Video to follow.....

<object width="480" height="385"><param name="movie" value="http://www.youtube.com/v/hfimXVHXooY&hl=en_US&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/hfimXVHXooY&hl=en_US&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="480" height="385"></embed></object>



It came out great!



JD

OverLord
3rd May 2010, 06:30 PM
I had a 1 GB for my phone & then bought two 4 GB later on.
I then swapped the 1 gig for the 4 for my phone & it saved me today...
I had trouble with the 1 GB at the pad, so I just pulled the 4 out of my phone & everything worked!

Video to follow.....

<object width="480" height="385"><param name="movie" value="http://www.youtube.com/v/hfimXVHXooY&hl=en_US&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/hfimXVHXooY&hl=en_US&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="480" height="385"></embed></object>



It came out great!



JD

VERY NICE JD!!!

Mike

Evo666
4th May 2010, 12:30 PM
HURRY up and arrive at my door

Pantherjon
4th May 2010, 04:28 PM
HURRY up and arrive at my door

Getting antsy?:roll: The last one I got off eBay took 12 days to show from Hong Kong..

TZ250
5th May 2010, 05:48 PM
The last one I got off eBay took 12 days to show from Hong Kong..

I also just ordered keychain camera from eBay. I'm trying to be patient. I can't wait any faster! :D

JDcluster
6th May 2010, 12:09 AM
That's why it's better to buy upgrades & new toys in the off season....


JD





I also just ordered keychain camera from eBay. I'm t.rying to be patient. I can't wait any faster! :D

TZ250
6th May 2010, 12:39 PM
That's why it's better to buy upgrades & new toys in the off season....


JD
JD, that's a good idea, but I didn't have a rocket in the off season. This is my first rocket. I've learned a lot so far, but I have a LOT more to learn! :D

Rocketman248
7th May 2010, 04:45 PM
Got mine today! Now I need a memory card.

slogfilet
7th May 2010, 04:53 PM
Add me to the list... ordered one a few days ago. The 2gb card in my phone would probably be put to better use in the cam. :rolleyes:

For only $11.15, I can be James Bond!

JDcluster
7th May 2010, 11:31 PM
Now's a good time to start making a shopping / wish list:D.


JD

Pantherjon
8th May 2010, 05:50 AM
Got mine today! Now I need a memory card.

I got a 4GB card from Frys.com..Was like $10..

MattieShoes
8th May 2010, 06:41 AM
I got a 4GB card from Frys.com..Was like $10..

If you shop around and possibly wait for a sale, you can get even larger ones for about that. I think my 8 GB cards were 12 bucks each.

On the other hand, I think the batteries would die not much after a 4GB card was filled. I think when we had a temporarily lost rocket, it recorded ~5 GB of data before the batteries died.

Night Tripper
10th May 2010, 02:10 PM
Two cams arrived on my doorstep on Saturday. Memory card next on the list. I'm looking forward to playing with it soon.
:bangbang:

Evo666
10th May 2010, 09:45 PM
yippy! I just recieved my cam. Anybody know the charging time for this little thing?

UPscaler
10th May 2010, 09:55 PM
yippy! I just recieved my cam. Anybody know the charging time for this little thing?

Mine's good to go in about 45 minutes usually.

Moldie
13th May 2010, 02:28 AM
I purchased two cameras from here:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=160414582568&ssPageName=STRK:MEWAX:IT

I have not used them on any rockets yet but indoor tests shows one of the units has an audio problem. During playback there is some weird loud noise. The other unit seems fine.

I tested both units with 2 different 4gig Kingston microSD cards.

But for $6 a piece, no complaints. I will probably pick up 2 more from a different seller.

Caveat emptor

bandman444
13th May 2010, 03:08 AM
How do you guys mount these things...for serious HPR i know tape works fine on little ones

UPscaler
13th May 2010, 03:32 AM
How do you guys mount these things...for serious HPR i know tape works fine on little ones

I just use electric tape. We've used it on big G motors and I'm confident it will be fine on big rockets.

Kira_Majeric
14th May 2010, 11:34 PM
I purchased two cameras from here:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=160414582568&ssPageName=STRK:MEWAX:IT

I have not used them on any rockets yet but indoor tests shows one of the units has an audio problem. During playback there is some weird loud noise. The other unit seems fine.

I tested both units with 2 different 4gig Kingston microSD cards.

But for $6 a piece, no complaints. I will probably pick up 2 more from a different seller.

Caveat emptor

All 4 of my cameras came from this same vendor. If you email them, they have wonderful service. They offered for me to send back a broken one, and said they would send a new one. I just emailed them through ebay. Great vendor.

UPscaler
14th May 2010, 11:57 PM
Mines fried. Oh well, just have to order another one :D

Rocketman248
15th May 2010, 05:08 AM
Finally got around to buying a memory card. It's all set to fly on my L2 cert tomorrow.

Kira_Majeric
15th May 2010, 05:56 PM
Has anyone one else had their computer not recognize their camera at all? Saying that you have to reformat the sd card? All of mine are working well, but I have been asked that question by someone who bought one on my recommendation. He has tried to plug the camera into his computer as well as just the sd card.

any ideas? I'm at a loss for advice for him.

Rocketman248
16th May 2010, 02:10 PM
Got a chance to use it yesterday. I flew it on my L2 cert flight. I think for the next flight, I'm going to put it on the main chute section. Hopefully that'll keep the spinning down to a minimum.
Zowhy-iSpt4

DAllen
16th May 2010, 08:28 PM
I flew it on my L2 cert flight.

You need to change your sig then. ;-)

Pantherjon
17th May 2010, 03:01 PM
Flew my keychain cam on my Trois Duex this weekend. :) Gotta edit and upload to YouTube..Will post a link tonight after work!

Rocketjunkie
17th May 2010, 07:06 PM
Flew my keychain cam on my Trois Duex this weekend. :) Gotta edit and upload to YouTube..Will post a link tonight after work!I flew mine in a drag race with Pantherjon's. His rocket was faster - hopefully he got mine in his video. Here's mine:
tuJftK3F_hI

slogfilet
17th May 2010, 07:12 PM
My cam came in the mail last week... this thing is cool! I had some trouble with it being recognized by my computer, but I switched out the USB cable, and it seems to be working. I've read that these tend to come with low quality cables, so make that one of the first things you check if you're having trouble.

It will hopefully be attached to a flight next month!

McKailas Dad
17th May 2010, 07:42 PM
:eyepop: Ah-ha! So, Rocketjunkie, it is true! I knew 'crop-circles' were caused by spacecraft, but I imagined them to be from a much larger craft...:roll:

Pantherjon
18th May 2010, 04:45 AM
Well, here is the flight of the Trois Duex! Unfortunately I didn't get Tom(Rocketjunkie)'s rocket in my video. I did get his smoke trail tho as we were on diverging flight paths..'Our' drag race became an impromptu 3-way drag race as the rocket next to mine was inadvertently launched with ours(pad was armed when the launch button was pressed...Battery ran out prior to touch down..Rocket landed about 15 feet shy of some hungry rocket eating trees!:eek:

Was a great flight! Flew it again on Sunday with a much smaller chute and recovered it much closer to that pad that day! :)

LHIjjC1mwNk

mv1371
23rd May 2010, 03:23 PM
I recently received and used my keychain cam. However, I use Windows XP and have Windows Movie Maker software. I can view the .AVI file but Movie Maker won't let me edit it. Can anyone suggest free and simple to use video editing software?

Sandy H.
23rd May 2010, 03:31 PM
I've used Movie Maker with XP and had no problems. The keychain cam I have uses uncompressed AVI files, so there shouldn't even be a codec issue.

Sandy.

mv1371
23rd May 2010, 05:24 PM
O.K. I have it working now. I am unable to change the date stamp because I don't have a SD card reader for my computer.
CbXcgKbLeUo

UPscaler
23rd May 2010, 06:51 PM
you don't need a card reader to do it. You just plug the camera into the computer. Make a .txt. file called tag with the time and date.

mv1371
23rd May 2010, 07:49 PM
you don't need a card reader to do it. You just plug the camera into the computer. Make a .txt. file called tag with the time and date.

It took me a while, but I fixed it. :clap:

JDcluster
23rd May 2010, 10:31 PM
You don't need a card reader! The key chain cam will act as a storage device.
There is a post on here or RP about a website that someone has done extensive testing & has found a way to correct the time stamp.


JD





O.K. I have it working now. I am unable to change the date stamp because I don't have a SD card reader for my computer.

davalf
24th May 2010, 01:20 AM
Has anyone mounted these other then taping it to the side? If so pics and details please.

Dave

Pantherjon
24th May 2010, 03:50 AM
I recently received and used my keychain cam. However, I use Windows XP and have Windows Movie Maker software. I can view the .AVI file but Movie Maker won't let me edit it. Can anyone suggest free and simple to use video editing software?

I use Video Edit Master available for FREE here (http://software.tutorialsroom.com/)..The interface is a little clunky, but workable to do simple editing, cutting out segments, adding segments..That is how I made the video of all the launches in the 'Events/Local Regional Events' sub forum..

rockosrocket
24th May 2010, 04:44 AM
Has anyone mounted these other then taping it to the side? If so pics and details please.

Dave

Yes. I have mounted it inside a BSD 38 Special EB next to the altimeter. It points out horizontally to a mirror looking down. I use twist ties to strap it to a cardboard electronics panel modified for correct video angle.
I just launched it today and I will upload the video and some pictures soon. It was this rockets maiden flight and first dual deployment test with a G80 to make sure it flies true for my Level 1 cert. 923' and near perfect flight. Slight tanglement in the drouge and main shock cords but still passable I think.

rockosrocket
24th May 2010, 05:31 AM
Modified for dual deployment BSD 38 Special with G80T. Test flight for level 1 certification.
The mirror could have been a little cleaner......

Jb7UdWF6FqI

This picture shows my shotty craftsmanship and how I jerry rigged it in there!
http://i448.photobucket.com/albums/qq202/rockosrocket/DSCN2880.jpg

Hopefully they will see past the mess I made on the paint.
http://i448.photobucket.com/albums/qq202/rockosrocket/DSCN2882.jpg

RoyAtl
24th May 2010, 05:52 AM
I recently received and used my keychain cam. However, I use Windows XP and have Windows Movie Maker software. I can view the .AVI file but Movie Maker won't let me edit it. Can anyone suggest free and simple to use video editing software?

It won't work with XP, but I'm using Windows 7 and Windows Live Movie Maker (a separate download) does a great job with .AVI files. I just created a short file where the sources were one of the first .AVI files made in 1994, a high-def file made last year, and a gum cam file.

http://www.soarrocketry.org/images/testingaviedit.wmv

It also nicely handles the .MOV files from my Kodak Zi8:
YcbWSQuP-9Y

rockosrocket
26th May 2010, 08:26 AM
Another barely successful flight with the keychain cam. I found "Tuck" tape no longer strong enough for securing the camera to the body tube on flights approaching 600mph. The loud sound is the tape over the gap between the edge of the camera and the body tube flapping and then fraying and ripping off :eyepop:. With the high speed apogee deployment I was lucky I decided to go no 'chute.
Anyways its a dual deployment 2 stager I call Pinacle 2.

XXZ8dgrZZJM

TZ250
3rd July 2010, 04:51 AM
This is my first try at using the keychain camera. It works well. Obviously, I haven't fixed the date. I'll do that later.

This was taken today on a Apogee Aspire with a D12. When I got home, UPS delivered my Wildman Dark Star Lite kit that I'll build for L1.

http://www.youtube.com/watch?v=LYZyg3WFyxc

atlcdp
4th July 2010, 11:19 PM
I purchased 3 of these key chain cameras from a far eastern sleer on ebay. Thet cost $7.50 a piece with shipping. I teste on yesterday on my daugthers Estes Big Daddy. Videos are at mms://andynuthouse.com/big_daddy_launch/ and mms://andysnuthouse.com/big_daddy_chuff/. Not much for altitiutde, 350' measured on my Altimeter One, but the video is great.

Well worth the money for a low cost video system.

FYI: andysnuthouse.com is a server I host. MMS is the prefix to tap into a Windows Streaming Server video stream.

scsager
6th July 2010, 12:43 AM
FYI: andysnuthouse.com is a server I host. MMS is the prefix to tap into a Windows Streaming Server video stream.


Could not get your links to work...

KennB
6th July 2010, 04:29 AM
http://www.boston.com/business/technology/articles/2010/07/05/swanns_latest_security_device_has_that_sinister_vi be/

This was in the 05 July Boston Globe. $100 sounds a lot more expensive than most of what I've seen at the launches.

Mikus
6th July 2010, 04:37 PM
http://www.boston.com/business/technology/articles/2010/07/05/swanns_latest_security_device_has_that_sinister_vi be/

This was in the 05 July Boston Globe. $100 sounds a lot more expensive than most of what I've seen at the launches.

LOL! Anybody paying $100 for that is getting severely ripped-off. :2:

BEC
7th July 2010, 06:25 AM
Yeah, looks like that guy in Boston is looking to make a real profit. The specs are standard #3 camera stuff except for the implication that the date stamp is optional.

Sure is tempting to register just to post a link to eBay sellers, the Chuck Lohr site and maybe a thread or two on a forum.

luke strawwalker
7th July 2010, 06:46 AM
There was a thread around here somewhere about a couple months ago where some guy bought one from some outfit here in the States selling an "encrypted" version of the same old #3 camera for like almost $300 IIRC...

Wonder if he ever got his money back??

Later! OL JR :)

McKailas Dad
23rd July 2010, 09:18 AM
Well, I guess I'm next in line....I ordered a couple today :D Darn peer pressure!

They were ordered from for-easy-life (http://cgi.ebay.com/Spy-Camera-Key-Chain-Camcorder-Video-Cam-720x480-30FPS_W0QQitemZ160414582568QQcmdZViewItemQQptZLH_D efaultDomain_0?hash=item2559744728#shId)

The email reciept said 3-4 weeks, now I, as well many of you have, get to play 'the Waiting Game'. Tic-toc-tic-toc.....:rolleyes:

MattieShoes
23rd July 2010, 11:20 AM
GDJwhpBozfs

My dad's Madcow Cricket on an H123 at last month's launch, from both the ground and the rocket. The kid going "Whoa, that was awesome" cracks me up :-)

at 2:10, another guy looking for a rocket passes below. at 2:19, it passes over a rocket... Hopefully not the rocket the guy was looking for, because I think he walked too far. :-) Just about the only cement within a mile of the launch site is a small 3 foot wide drainage ditch... Naturally, that's exactly where it landed. No real damage other than some scratched up paint. :-)

mack
23rd July 2010, 02:34 PM
Well, I guess I'm next in line....I ordered a couple today :D Darn peer pressure!

They were ordered from for-easy-life (http://cgi.ebay.com/Spy-Camera-Key-Chain-Camcorder-Video-Cam-720x480-30FPS_W0QQitemZ160414582568QQcmdZViewItemQQptZLH_D efaultDomain_0?hash=item2559744728#shId)

The email reciept said 3-4 weeks, now I, as well many of you have, get to play 'the Waiting Game'. Tic-toc-tic-toc.....:rolleyes:

I just received two from For-easy-life yesterday and it took about a week. I haven't been able to try them out yet.

Mack

edit: I looked at the shipping confirmation and it was sent 7/14/2010 and received 7/22/2010. Pretty quick!

georgegassaway
23rd July 2010, 03:30 PM
See this thread in the Rocket Boosted Glider forum:

http://www.rocketryforum.com/showthread.php?t=13472

Jonathan Dill & I put his Keychain cam onto my R/C Rocket Glider last Saturday.

And on top of that, a strange weather phenomenon was coming thru. Video link and more pics on that thread.

- George Gassaway

georgegassaway
29th July 2010, 07:32 PM
I’m wondering what micro SD cards work, and do not work, with these?

I am considering this one on eBay for example:

http://cgi.ebay.com/New-SanDisk-8GB-Micro-SD-HC-Memory-Card-MicroSD-8G-SDHC-/280538792350?cmd=ViewItem&pt=Digital_Camera_Memory_Cards&hash=item41516a419e

Does the SanDisk micro SDHC card work?

Is there some better deal for an 8 gig card that is good enough quality to work with the keychain cams?

I am looking to get an 8 gig card, but time is sort of short so I can’t run the risk of waiting for one from HongKong to show up too late.

- George Gassaway

slogfilet
29th July 2010, 07:43 PM
Mine died on me after a few weeks... battery still tests fine, but it won't power up. Anyone else have any failures?

I haven't head too many quality issues, so I'll probably just get another one (or two.)

georgegassaway
29th July 2010, 07:50 PM
Mine died on me after a few weeks... battery still tests fine, but it won't power up. Anyone else have any failures?
I ordered two over a week ago, and one cheap 2 gig card. It will be awhile before they get here.

Anyway, a message from the seller said do not charge them for more than 3 hours.

So, if anyone has left theirs on charge for really long periods of time and had problems later, possibly you’re killing the battery from overcharging. Well you said the battery "tests fine", so maybe not. Still, I wanted to mention that warning about 3 hour charge at most.

- George Gassaway

McKailas Dad
29th July 2010, 07:56 PM
Of what I understand, the 8 gig is waaaay overkill, a 2 gig is plenty. I think the battery will die even before you even fill a 2 gig. Correct me if I'm wrong, but I don't believe a higher memory capacity card will improve video quality.

I can get the SanDisk micro 2 gig at Walmart for around $10-12. Although I haven't heard the best reviews on SanDisk in general, I could borrow the one out of my wifes phone to see how it works when I get my camera.

On that note, what brands, and gig size, are people using?

slogfilet
29th July 2010, 09:03 PM
I am looking to get an 8 gig card, but time is sort of short so I can’t run the risk of waiting for one from HongKong to show up too late. - George Gassaway

Depending on which model you end up with, it may not be able to write a file size larger than 4GB (evidently that's the limit of the .avi format?)

However, I've read that some models overcome this by simply starting a new file once it reaches that size. It's just kinda hard to tell which one you'll get sometimes.

Though with an 8GB card, you could have plenty of space left over for other files, so it might not be all bad.

Sandy H.
29th July 2010, 09:11 PM
Of what I understand, the 8 gig is waaaay overkill, a 2 gig is plenty. I think the battery will die even before you even fill a 2 gig.

My 2gb card fills up in around 15 minutes. The battery seems to last closer to an hour. I now use an 8gb card, but have not recorded more than 4gb in one shot, so I don't know how it handles that.

Sandy.

georgegassaway
30th July 2010, 04:30 AM
Reason I am thinking of 8 Gig, is that I probably will not have a laptop at the field to download files to it flight-by-flight, like a lot of people do. So, I’d get a lot of individual flights onto the 8 Gig card, then download at home later.

Indeed charge-wise at the field (to re-top it off), I have tried to find some cheap way to use some kind of battery hooked up to a USB cable. I have found lots of 110 Volt AC items that can charge USB devices, but I’ve not yet found the dumb-simple battery based version of the same thing.

- George Gassaway

luke strawwalker
30th July 2010, 06:02 AM
From what I've gathered on the RC Groups forum discussion about these, the CLASS of the card is more important than the capacity... though of course the capacity allows more files on the card or longer recordings...

The higher the class number, the faster the card will write and the fewer dropped frames and 'lurches' there will be in the finished vid, in other words, the better the quality.

Some are using Class 6 cards, but they haven't been shown to be definitively better than class 4, at least that seems to be the consensus.

Of course, higher class rating cards cost slightly more than standard class 2 cards, as well... but they're not HORRIBLY more expensive...

Later! OL JR :)

daveyfire
30th July 2010, 06:44 AM
Still, I wanted to mention that warning about 3 hour charge at most.

I left one plugged in to my computer overnight and it quit working the next time I tried to use it. On power-up, the LED would illuminate and the casing would get quite warm, but after repeated button-pushing nothing would happen. The battery would then die after a while and the LED would go out again. So yea... overcharging definitely kills 'em :blush:

Rex R
30th July 2010, 07:10 AM
what size/type battery do they use?

scsager
30th July 2010, 07:24 AM
:2: My experience...

You will need micro sdhc cards - the most commonly available type works fine. The camera does get warm while charging and I believe over-charging can do some damage. I'll only leave mine connected/charging for about 2 hours. That's more than enough charge to completely fill a 4gb card.

I agree that card "class" is important. I purchased two 4gb class-6 cards (http://www.newegg.com/Product/Product.aspx?Item=N82E16820208408)with adapters from Newegg at a cost of 22.97 (incl shipping) With my inexpensive class-6 cards, I do see some slight jerky/jumpy effects in the video. I have seen this same effect to a much larger degree on other peoples videos. A better/faster (more expensive) card might reduce this.

One of my rockets got stuck in a tree with the camera running. The 4gb card was freshly empty when I launched, and completely filled with two avi files when I finally got it back days later...

- first file 2.22 gb 30 minutes
- second file 1.34 gb 16 minutes

This shows that the camera/codec does have a file size limit, but it will keep recording and creates a second file when it hits the file size limit with the first file.

-Scott

Handeman
1st August 2010, 06:10 PM
Just ordered two of these (http://cgi.ebay.com/New-Spy-Car-Key-Chain-Camera-DVR-Covert-Video-Recorder-/180487600644?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item2a05e63a04) at the new low prices of $1 :y:

BobCox
1st August 2010, 07:03 PM
Mine came with a cheap 4GB MicroSD card that tests at ~2.8 MB/s (Class 2). It frequently drops frames throughout the video. When I plugged in a 2 GB card that tested at 4.3MB/s (Class 4), the video looked good except for a few dropped frames during the first second or two. According to some other forums, dropping early frames is common even with really good memory. I would suggest just getting Class 4 and not paying extra for anything faster.


what size/type battery do they use?
They all use a single-cell LiPo battery, ~3.7V. The capacity varies; mine is 200 mAH.

Rex R
1st August 2010, 07:35 PM
ah, thanks :). in that case...park flyers/micro helis run that size battery. eflite rtf helis(and probably parkflyers) come with chargers that run on AA batts. it has been noted that those chargers tend to cook the lipos by charging at too high a rate, but for occasional use they'll work. I stopped using mine as soon as I could rig a charge adaptor for my good charger(looks strange to see a 110mah cell hooked up along side a 5ah pack :)).
with that all said, I've got a battery powered 1s lipo cell charger that could adopted out...:).
rex

McKailas Dad
3rd August 2010, 03:18 AM
Well, my two cams showed up today! (so did my 24mm Rocketarium retainer, thanks Tim...)

I'll have to go get the cards, I'll have to see what they offer for gig size and class. I know they offer 2, 4 and 8 gig, but not sure what 'class' they are...:confused2:

So, low gig/high class is ok? I don't need a 15 minute rocket vid, I'd have 12 minutes to spare!:roll:

McKailas Dad
3rd August 2010, 04:28 AM
How nice, my wife picked up a 4GB, class 4, PNY brand card for me :D Got it from Walmart, sooo we will see how it works!

I think I may have to figure out a way to strap it to my youngest daughters head, like a baby-vision-cam. Probably a good thing we don't have a dog...:roll:

luke strawwalker
3rd August 2010, 04:58 AM
Well, my two cams showed up today! (so did my 24mm Rocketarium retainer, thanks Tim...)

I'll have to go get the cards, I'll have to see what they offer for gig size and class. I know they offer 2, 4 and 8 gig, but not sure what 'class' they are...:confused2:

So, low gig/high class is ok? I don't need a 15 minute rocket vid, I'd have 12 minutes to spare!:roll:

Look somewhere on the card for a tiny "C" mark with a number in the center of it... it's about as big as a gnat's backside, so you'll have to look close. The number inside the C is the class number of the card. If there is NO "C" class number, it's a class 2.

Hope this helps! OL JR :)

MattieShoes
3rd August 2010, 09:24 AM
Reason I am thinking of 8 Gig, is that I probably will not have a laptop at the field to download files to it flight-by-flight, like a lot of people do. So, I’d get a lot of individual flights onto the 8 Gig card, then download at home later.

Indeed charge-wise at the field (to re-top it off), I have tried to find some cheap way to use some kind of battery hooked up to a USB cable. I have found lots of 110 Volt AC items that can charge USB devices, but I’ve not yet found the dumb-simple battery based version of the same thing.

- George Gassaway

There are lots of car->usb charger devices, primarily so people can plug their ipods in while they drive and whatnot, but it should work for this too, and it ain't gonna make a dent in your car battery...

Or if you're electrically inclined, you could always make your own. USB is 5 volt and sources about 500 milliamps, so four AA's in series with a current limiting resistor could probably be made to work pretty easily.

After writing that, I figured somebody must have already done it...
http://www.boxwave.com/products/batteryadapter/

BobCox
6th August 2010, 05:15 PM
Or if you're electrically inclined, you could always make your own. USB is 5 volt and sources about 500 milliamps, so four AA's in series with a current limiting resistor could probably be made to work pretty easily.
Alkaline batteries are closer to 1.65V each, so four of them would be 6.6V, while three would be 4.95V. Even that is enough to damage a LiPo battery if it is not current-limited or if it is left on too long.

stickershock23
6th August 2010, 07:48 PM
I am having a heck of a time with turing mine on and arming it.

The instructions say press the power button long. 3 blinks. then press the other button long to get video. again 3 blinks but when I do the led does not blink like that at all.

Whats the secret combo?

McKailas Dad
6th August 2010, 10:23 PM
I took me a bit to figure it out, too. I actually labeled the buttons, all 2 of them :p

Camera off and charged. (mine charged for about 2 hours)
Push power ('lower') button on.
Press vid ('upper') button till quick 3 flashes.
You are now recording video. (no light on while recording :confused2:)
Press vid button again to stop recording.
Solid yellow light means recording saved.
Push power again to turn off.

Do not rinse, but repeat as necissary. ;)


Now, if I could just figure out the re-charging...I get slow flashes when charging, meaning low battery.

Book says light should be solid when charging, don't wanna fry the little thing!

stickershock23
6th August 2010, 10:46 PM
I took me a bit to figure it out, too. I actually labeled the buttons, all 2 of them :p

Camera off and charged. (mine charged for about 2 hours)
Push power ('lower') button on.
Press vid ('upper') button till quick 3 flashes.
You are now recording video. (no light on while recording :confused2:)
Press vid button again to stop recording.
Solid yellow light means recording saved.
Push power again to turn off.

Do not rinse, but repeat as necissary. ;)


Now, if I could just figure out the re-charging...I get slow flashes when charging, meaning low battery.

Book says light should be solid when charging, don't wanna fry the little thing!

Mine is weird then, I never get QUICK flashes

I push power (lower larger button) i get 3 slow flash then goes solid.
push hold record button 3 slow flashes then goes dark.
press again led on solid.

No yellow ever.

i plug it to my computer and I get some short vids and some pictures...
they never heard of SIMPLE..

EDIT: Ok I just tried it again. followed your instructions, again no QUICK flashes.. just 3 slow flashes. BUT it did record video while the led was OFF.

UPscaler
6th August 2010, 11:49 PM
Mine is weird then, I never get QUICK flashes

I push power (lower larger button) i get 3 slow flash then goes solid.
push hold record button 3 slow flashes then goes dark.
press again led on solid.

No yellow ever.

i plug it to my computer and I get some short vids and some pictures...
they never heard of SIMPLE..

EDIT: Ok I just tried it again. followed your instructions, again no QUICK flashes.. just 3 slow flashes. BUT it did record video while the led was OFF.
Correct, mine does the same. 3 blinks...light off...and then it's recording. confusing, but hey, they're only $8

stickershock23
7th August 2010, 12:10 AM
Correct, mine does the same. 3 blinks...light off...and then it's recording. confusing, but hey, they're only $8

Yeah and the instructions are so tiny even with a magnifying glass I can barely read them LOL but it does work.

tonypv
7th August 2010, 12:36 AM
Here a good pdf of instructions I found. Real easy to follow. :)

McKailas Dad
7th August 2010, 01:17 AM
tonypv, thanks for the better instructions! However, regarding changing time/date with Vista, can someone walk me thru that?

I found the 'Command Prompt', but from there I am clueless...:confused2:

Back when I had my Atari 800, I was all over Basic! :rolleyes: But now...:(

MattieShoes
7th August 2010, 01:22 AM
Alkaline batteries are closer to 1.65V each, so four of them would be 6.6V, while three would be 4.95V. Even that is enough to damage a LiPo battery if it is not current-limited or if it is left on too long.

As I understand it, the voltage on an AA with no load may be as high as 1.6 volts or more, but with any sort of load on it (for instance, charging the camera battery), the voltage will typically drop to 1.5 or even lower. I'm no expert though -- let me know if I'm missing something.

And I did say "with a current limiting resistor"... :-)

As for damaging the battery, my understanding of the LiPo batteries is that they can be damaged by charging when they're already charged no matter what -- there is no safe trickle charge voltage. I was just suggesting a way to emulate what happens when you plug them into the USB port, which is a constant 5 volts sourcing at least 500 milliamps...

McKailas Dad
7th August 2010, 02:09 AM
As for damaging the battery, my understanding of the LiPo batteries is that they can be damaged by charging when they're already charged no matter what -- there is no safe trickle charge voltage.

I just had mine plugged in to charge. The yellow light is solid for about 20 seconds, then it 'slow flashes'. I'm pretty sure when I charged it for the first time, the light was solid, and then it was full charge, light went off. I've had it charging for about 20 min, still slow flash. :confused2:

I figured out the date/time, downloaded zip from http://www.software-schlosser.de/index.php?nav=808setclock

UPscaler
7th August 2010, 07:12 AM
Since I started this thread, the ebay dealers are probably loving us right about now.

Even before this people were buying them up, but this started a pandemic! I need to order a couple more. My first one is dead.

georgegassaway
8th August 2010, 08:40 PM
I have posted a thread in the Rocket Boosted Glider forum, which involves practice flying landings that I have been doing with an FAI S8E/P R/C Rocket Glider:

http://www.rocketryforum.com/showthread.php?t=13995

Reason I am mentioning it here, is that I put Jonathan Dill’s Keychain camera onboard Friday, and got three videos. So, go to the above link to see what it’s about and the video links.

Sadly, I killed Jonathan’s camera. No, not a crash, it’s survived crashes before (not mine). I left his camera plugged into my computer for 4 hours, and that killed the battery. I knew better, I just forgot, and by the time I remembered, it was too late.

I have two of the cameras on order so I'll give one to Jonathan to replace the one I zapped. Also I might have a Li-poly cell small enough to replace the cooked one, have not opened the camera yet to see if it will fit.

I will also say I ran into the reason why I want to use an 8 gig card, as I mentioned many messages back. For the third session, I left the camera on for about 20 minutes or more, which would have recorded about 6 flights. But the 2 gig card got filled up, so it only got 2 flights on the 3rd video.

I do now have an 8 gig card. No operable camera now, but an 8 gig card.

Attached, a few more screenshots, different from the ones at the above link.

The objective of the practice landings is to land as close to the red cup as possible. Do not look for the launch pad, you won’t find it.... :)

- George Gassaway

georgegassaway
9th August 2010, 05:06 PM
For awhile, I thought I could get Jonathan Dill’s Keychain Cam back to life. I opened it up and saw that the Li-Poly cell in it was about the same size as a spare one I had. So, I did some soldering to swap them out. But the camera still won’t do anything. Although now when I hook it up to my computer, it blinks and blinks. Before, the light was simply on continuously.

I left it on for an hour, in case it was recharging and needed to be charged for a certain time. But still no change. And I would have thought even while charging it should have showed up as a Thumb Drive. But ever since I left it on too long, it is not only dead as a camera but also dead as a “thumb drive”.

The other strange thing is this. I took a voltage reading on the battery I removed. 4.0 volts. Exactly 4.0. So if the battery got “cooked”....... WHY is it reading 4.0 volts as a healthy Li-Poly would be expected to, and not say 1.3 volts?

Makes me wonder if some other component gets fried inside when it is overcharged, and not the battery itself.

Has anyone successfully given their “cooked” KeyChain Cam a battery transplant that brought it back to life?

- George Gassaway

Rex R
9th August 2010, 05:24 PM
a fully charged lipo runs 4.2v per cell, 4v is approx 95%.

McKailas Dad
9th August 2010, 09:14 PM
I still get slow blink if I plug it in. Doesn't that mean "low battery"? Cameras not fried. Maybe I should wait till I know the battery is dead (as in dis-charged). While I did buy two of them, one of them is supposed to be my wifes. I have no clue why she wanted it...:confused2: Maybe I'll try 'hers' and see what happens.

BEC
9th August 2010, 11:03 PM
I still get slow blink if I plug it in. Doesn't that mean "low battery"?

It's supposed to blink until it's fully charged...but it seems to be fairly inconsistent from camera to camera. Try a different USB cable (one that didn't come with those cameras). Otherwise, just pull it off the charge after two or three hours.

luke strawwalker
10th August 2010, 06:37 AM
For awhile, I thought I could get Jonathan Dill’s Keychain Cam back to life. I opened it up and saw that the Li-Poly cell in it was about the same size as a spare one I had. So, I did some soldering to swap them out. But the camera still won’t do anything. Although now when I hook it up to my computer, it blinks and blinks. Before, the light was simply on continuously.

I left it on for an hour, in case it was recharging and needed to be charged for a certain time. But still no change. And I would have thought even while charging it should have showed up as a Thumb Drive. But ever since I left it on too long, it is not only dead as a camera but also dead as a “thumb drive”.

The other strange thing is this. I took a voltage reading on the battery I removed. 4.0 volts. Exactly 4.0. So if the battery got “cooked”....... WHY is it reading 4.0 volts as a healthy Li-Poly would be expected to, and not say 1.3 volts?

Makes me wonder if some other component gets fried inside when it is overcharged, and not the battery itself.

Has anyone successfully given their “cooked” KeyChain Cam a battery transplant that brought it back to life?

- George Gassaway

Some of these things have been revived and repowered... check the RC GROUPS thread--

http://www.rcgroups.com/forums/showthread.php?t=1115052

There is a TON of good information in there...

I think (IIRC) that reformatting the card would probably be necessary. I know I've read where the thing got messed up and the computer wouldn't recognize it anymore, and a reformat of the card helped that. The other thing that would probably help is hitting the 'reset' button hidden behind a little hole in the side of the camera. You have to straighten out a paperclip and insert it in the case to press the reset button. That seems to get some of them to come back up.

You can probably search through the thread (since it's VERY long) and kinda skim it and find what you're looking for... there have been discussions that went on for a couple pages when folks were trying to revive dead cameras, detailing what they did and what worked and what didn't.

Good luck! OL JR :)

Handeman
13th August 2010, 08:50 PM
It's the 13th of Aug. My two 808 cameras just arrived from Guangzhou China. I ordered them off ebay for $1 each on Aug 1st. Thirteen days for snail mail half way around the world, not too shabby considering it had to get through customs too.

I don't know what the exchange rate is, but I paid $12.95 US for postage, the sticker says Y 018.00 and there is a 10.80 written on the package. Even if it only cost $0.95 for postage and they are getting $7 each for the camera, I find it hard to believe they're making much money. We must be buying a huge volume of these. :y:

georgegassaway
14th August 2010, 01:57 PM
I got two keychain cams this week.

Having borrowed Jonathan Dill’s camera, I knew what to expect. Well, one works fine, the other does not. I know I didn’t do anything wrong. And yes, I tried the reset button a few times.

So, what luck have any of you had when you’ve gotten a bad one, has the seller replaced it? Man, it might cost more to ship the bad one back to China than to buy a new one. I got mine from “for-easy-life”, BTW. I know, I need to contact him, but I want to get some input first form those of you who may have had the same sort of issues.

And even the one good one I got, I need to give that one to Jonathan Dill, to replace his from a week ago when I accidentally left it plugged into my computer for 5 hours and it died.

So, I will need to get another one, or two. So if some of you have had good luck with other sellers replacing the cameras, or better yet sellers whose cameras always work on delivery, that would be useful to know.

- George Gassaway

digitalastro
14th August 2010, 02:10 PM
George,

I had to return a MD-80 camera to China. This was a while ago, and I purchased the camera for $25.
The lowest cost to mail it was $13 and change. It took over a month to get there. I did get a working replacement two weeks after that.

As cheap as these things are now, it's probably best to order a bunch and accept a portion will be defective.

georgegassaway
14th August 2010, 02:31 PM
I have added three more R/C Rocket Glide S8-E/P Landing Practice videos here:

http://www.rocketryforum.com/showthread.php?p=123603

- George Gassaway

Handeman
14th August 2010, 05:44 PM
I got two keychain cams this week.

Having borrowed Jonathan Dill’s camera, I knew what to expect. Well, one works fine, the other does not. I know I didn’t do anything wrong. And yes, I tried the reset button a few times.



Of the two I got, one works great. The second one, not so well. It seems like the batteries are bad. If you leave it charging for a while it will work, but let it sit and hour or two and it's dead. The LED on the good one started flashing when the battery was charged. The bad never did flash.

I just tried the reset button, so we'll see, but I'm not optimistic about this.

I agree that it's not a bad idea to order a few and accept a percentage of bad ones. I just don't like getting 50% bad. I guess at $1 each, I should have ordered 10 of them.:( Live and learn!:bangpan:

georgegassaway
14th August 2010, 06:28 PM
I agree that it's not a bad idea to order a few and accept a percentage of bad ones. I just don't like getting 50% bad. I guess at $1 each, I should have ordered 10 of them.:( Live and learn!:bangpan:

Uh, did you order from someone who combines shipping? Seem like the $1 cameras I've seen listed are priced for making money on the shipping for each individual camera. Otherwise, SURE, I'd order 10 at $1 each!

- George Gassaway

RobD
14th August 2010, 07:15 PM
I just ordered 10 of them. They do not combine shipping. I ordered some cheap micro sd cards also from China. I am afraid that they aren't going to work well though (too slow). I am expecting a couple to be bad (of both camera and memory).

Handeman
14th August 2010, 07:24 PM
Uh, did you order from someone who combines shipping? Seem like the $1 cameras I've seen listed are priced for making money on the shipping for each individual camera. Otherwise, SURE, I'd order 10 at $1 each!

- George Gassaway

I bought it here (http://cgi.ebay.com/New-Spy-Car-Key-Chain-Camera-DVR-Covert-Video-Recorder-/180487600644?pt=LH_DefaultDomain_0) from seller linjiechong (http://myworld.ebay.com/linjiechong/) in china. It was $1 each. Shipping for $6.47 flat rate for each. Now they are posting $1.45 each and $6.34 flat rate shipping.

Even if they are making their money on shipping, I can't imagine how they are even making any money on these. As far as I'm concerned, a total of $7.50 each is a great buy and $15 still a pretty good buy. Especially for something I plan on taping to a rocket.

bcanino
15th August 2010, 10:57 PM
...
Even if they are making their money on shipping, I can't imagine how they are even making any money on these. As far as I'm concerned, a total of $7.50 each is a great buy and $15 still a pretty good buy. Especially for something I plan on taping to a rocket...

It been said before, they can make money on them because they buy them by the pound or what weight unit they use. They are fall out from production, and if you don't waste any time checking them if they work, it almost all profit.

nerys
16th August 2010, 11:27 PM
Hey george. goto walmart in the camera department they should (at least they used to) have a USB battery box for $10

its a small black box about the size of a remote control. you put 4 AA's in it and it has a USB port on it. Thats it you can charge up your cams on the field.

radioshack also has DIGIPOWER cell phone boosters for $5 on clearance if you can still find them (good for maybe 1 or 2 charges but TINY and rechargeable.

Using one card for multiple flights is USUALLY a bad idea. with you its probable ok since your doing RC glider flights for others remember you get NO VIDEO without returning an undamaged memory card. SO I download between flights if not that I use a different mem card for each flight so I always have the flights before "the one" that crashes or gets lost etc..

WHen you shop on ebay guys IGNORE the shipping. Just add the two numbers together. IS that ok with you? the reason they are sold like this is simple. ebay gouges them so they transfer the cost to shipping for which THEY DO NOT have to pay ebay fees on. thats why the price is cheap and shipping is high.

so its NOT $1.45 and $6.47 shipping. its just $7.92 each cam shipped. thats how you have to look at it IE don't get greedy :-) hehe

what is dying in the cams is the charger voltage control circuitry. not the batteries. ie cheap components :-)

To kill the "spin" video or vomit video as I call it on recovery you need to harness the rocket. attach a shock cord and second parachute to the tail of the rocket so it comes down on TWO parachutes. make the rear chute a little smaller than the main chute so it comes down tail down a little (you want around a 45' angle)

Like this
http://www.naramlive.com/naramlive-2010/naramlive/06wednesday/images/CIMG8664.JPG

no more spin and you get good nice video all around. Thats a 13pound rocket wet and almost 8 feet tall 5.5" tube but it works just the same on the smaller rockets. Its what I use for my D through G rocket and what I use on my B and C engine rockets (thats my L2 cert flight btw) sadly no recovery video only 3/4 boost video (the cam g/vibe locked on me with the J381 Skidmark.

you need to pack the rear chute TINY and TIGHT and ROLLED so it does not open right away. so it has time to "get away" from the main chute before opening (stops tangles)

Chris


Reason I am thinking of 8 Gig, is that I probably will not have a laptop at the field to download files to it flight-by-flight, like a lot of people do. So, I’d get a lot of individual flights onto the 8 Gig card, then download at home later.

Indeed charge-wise at the field (to re-top it off), I have tried to find some cheap way to use some kind of battery hooked up to a USB cable. I have found lots of 110 Volt AC items that can charge USB devices, but I’ve not yet found the dumb-simple battery based version of the same thing.

- George Gassaway

nerys
17th August 2010, 12:59 AM
Here are some examples of USB Battery Boxes I found on ebay

300212409611
300262614354
150480813689
400084247654
250466744539
180507315300

rockie
29th August 2010, 03:30 PM
I flew my PML Bullpuppy with a keychaincam and here is the video.
Motor G61W-S 38mm. It has a nice kick :)
Have not edited the video yet so you have to forward to 2:20min for launch.

http://www.youtube.com/watch?v=BdYQ9rzO9F0

Attached a groundview snapshot too.

Rocket landed only a few meters from the rail/pad :)
I thought it would go some distance with the wind so we set it up at the fartest end. Its a paragliding(right term?) field, you can some chutes far behind us from the air.

nerys
29th August 2010, 04:32 PM
Got my keychain cam. Bummer its bad. this thing has potential though! its easy to rip apart and the cam is on enough of a ribbon to make it so I can hide the entire cam inside the rocket and just have the CMOS sensor unit poking out the side. I am going to have fun with these for sure. Seller is replacing it for me so few more weeks and I can try again.

as for that bull puppy. WOW that was a wickedly straight flight and spot on delay selection. Very cool flight !!

rockie
29th August 2010, 04:55 PM
Bad luck :(
I bought two just in case. I mounted them both on the rocket too if one was to shut off or somthing.
Both worked but the video i uploaded was the better of the two, more centered on rocket etc.

Great you liked it !
The Bullpup got large fin surfacearea although pretty heavy so with a rail its a perfect match. When it get up to speed it stays on path it seems :)
Its only marginally stable too, so wind does not seem to affect it so much like on overstable designs.

These small cams rock, hope you get yours soon !


Got my keychain cam. Bummer its bad. this thing has potential though! its easy to rip apart and the cam is on enough of a ribbon to make it so I can hide the entire cam inside the rocket and just have the CMOS sensor unit poking out the side. I am going to have fun with these for sure. Seller is replacing it for me so few more weeks and I can try again.

as for that bull puppy. WOW that was a wickedly straight flight and spot on delay selection. Very cool flight !!

RobD
29th August 2010, 09:00 PM
That was a very straight flight.

Mine spins like crazy, but it is an AT Cheetah. If those rings aren't perfectly straight it will show up on the video for sure. I tried aligning them with lines and a straight edge but that was a straight as I could get them.

Cheetah flight (http://www.youtube.com/watch?v=bS6zqZcbicY)

This was my second Cheetah. Lost the first one with a failed ejection charge on a Single Use motor.

I threw this one together in about an hour which could explain the spin. :o

rockie
30th August 2010, 03:16 PM
"Skinny" rockets seem to spin more easily, probably not a construction issue.
My smaller rockets have a tendensy to spin.

Nice video anyway, thats some altitude ! Took forever to come down hehe.

sparky
17th October 2010, 10:47 PM
Here is my video from yesterday with the keychain cam strapped on-board my Giant Leap Firestorm 54 on a CTI J425 blue streak. Everybody should have one of these cameras. http://www.youtube.com/watch?v=jp3ekbQuH6U

UPscaler
17th October 2010, 10:55 PM
Here is my video from yesterday with the keychain cam strapped on-board my Giant Leap Firestorm 54 on a CTI J425 blue streak. Everybody should have one of these cameras. http://www.youtube.com/watch?v=cbjdpFohWEc

They should be standard issue with TRA and NAR.

RobD
18th October 2010, 12:46 AM
Nice flight and nice video.
Can you give me more info on your mounting setup?

Also, which version of the Firestorm54 is that? Phenolic dual deploy?

I 'think' that the flashing date/time (dropped frames) is from a slow memory card. Mine is the same way. I am going to order a fast one and see if that helps it.

I probably won't launch until next month though.

sparky
18th October 2010, 01:02 AM
Well it was my chrome firestorm and I didn't want it scratched so I put a few wraps of 2" painters tape in the middle of the payload bay then I put a zip tie around that. I then took a small zip tie and put it under the other zip tie and through the hole on the camera. After that I used some masking tape to hold it tight. It is the old dyna-wind, dual deploy. Actually the original video doesn't have the dropped frames but for some reason after I uploaded it from windows movie maker to youtube it made the video jerky. I used a 8GB 4c card so it's pretty good. That size card gave me over 40min. of video.

DAllen
18th October 2010, 01:39 AM
"Skinny" rockets seem to spin more easily, probably not a construction issue.
My smaller rockets have a tendensy to spin.

Nice video anyway, thats some altitude ! Took forever to come down hehe.

Not necessarily...Here is my stretched PML IO:

UqyQJ7nuLAE

Evo666
20th October 2010, 07:49 AM
So on my first cam attempt, I managed to get a nice flight but burnt together chute.
Here's what happened to my Estes Patriot on a C6-5.
npB-uvkoKzw

UPscaler
21st October 2010, 04:26 AM
So on my first cam attempt, I managed to get a nice flight but burnt together chute.
Here's what happened to my Estes Patriot on a C6-5.
npB-uvkoKzw

Those dang plastic chutes...:rolleyes:

jessemarder
3rd November 2010, 03:22 AM
I just got my keychain cam in the mail today, charged it up using the included cable, and then put the micro SD card from my phone into the camera. After pressing the buttons required to take a few videos and pictures, confirmed by the LED blinking in the right fashion, I plugged it back into my computer and checked out the card. There was nothing there besides what was already on it from using it in my phone. Do you know if I need a brand new card or must format my old one before I can use it in this thing? Thanks!
Jesse

sparky
3rd November 2010, 03:45 AM
Yea, I think you need to format because it was in another device. If that doesn't work it's probably a bad camera.

nerys
3rd November 2010, 03:48 AM
that happens a lot. they are VERY cheap camera's failure rate can be as high as 50%

but they are so cheap its worth it :-) always order 2 or 3 otherwise its a long 3-4 week wait for the next one from china :-)

luke strawwalker
4th November 2010, 03:12 AM
I just got my keychain cam in the mail today, charged it up using the included cable, and then put the micro SD card from my phone into the camera. After pressing the buttons required to take a few videos and pictures, confirmed by the LED blinking in the right fashion, I plugged it back into my computer and checked out the card. There was nothing there besides what was already on it from using it in my phone. Do you know if I need a brand new card or must format my old one before I can use it in this thing? Thanks!
Jesse

Good advice already given--- also check and make sure the card isn't upside down... yeah it's happened!

Later! OL JR :)

rockie
4th November 2010, 08:30 AM
Yes buy atleast two.

You can then put both on the rocket in case one would shut down or break during flight. As a bonus there is two views to choose from after.

jFlds
13th November 2010, 04:01 PM
Time to jump on this bandwagon!

These are great.

I made a little sled out of some .040 aluminum, broken of course, and used Velcro to help it stay in place on the rockets. I made 2 small slices in my little sled to allow a hose clamp to run thru. This combined with the Velcro hold them on rather nicely.

gAr_-A2kcUI

UPscaler
13th November 2010, 05:19 PM
Time to jump on this bandwagon!

These are great.

I made a little sled out of some .040 aluminum, broken of course, and used Velcro to help it stay in place on the rockets. I made 2 small slices in my little sled to allow a hose clamp to run thru. This combined with the Velcro hold them on rather nicely.

gAr_-A2kcUI

YES! Another Kosdon fan! I just cut my arcas up to pull the hook and make our 29-150 fit :D

DAllen
13th November 2010, 06:24 PM
Okay, last March one of my rockets decided it was a submarine and my camera has been acting funny ever since. I know that there are now several different types on the market. Does anyone have an opinion on which is best?

UPscaler
13th November 2010, 10:45 PM
Okay, last March one of my rockets decided it was a submarine and my camera has been acting funny ever since. I know that there are now several different types on the market. Does anyone have an opinion on which is best?

If you go back to the start of the thread, somewhere on the first page I posted the link I bought mine from. It took less than a week to get to me, and it was in prefect condition.


-Braden

McKailas Dad
14th November 2010, 03:15 AM
DAllen, check page 5, #137, thats where I got my "#3" camera. Order a few of them, I ordered 2, and one of them is 'questionable', it doesn't seem to hold a charge very long. Other than that, it's the best rocket accessory next to parachutes!

I've seen 'gear-cam' videos that weren't as good as these, and these are 1/4 of the price. :D

Take into consideration the Youtube video quality is terrible, very 'pixelated' (if that is a word...)

kYK2-tAgaYY&hl

Rex R
14th November 2010, 04:06 AM
Jeff
methinks you ought to try a Binford motor in that bird :).
rex

Handeman
14th November 2010, 10:05 PM
Finally got my keychain camera on a bird and got a movie. I wasn't sure it would work because after the flight, it wouldn't turn off. The led stayed lit. It was out by the time I got home and when I hooked it up and checked the card, things started working correctly again.

I did get this video. I edited out the long stretches of the same thing. I posted it to Photobucket so clicking on the pic will take you there to view the video. It's better video quality then YouTube.

Estes D-Region Tomahawk on a Aerotech 24/40 RMS E18W-7 at BattelPark on 11/13/2010.

http://i31.photobucket.com/albums/c355/Handeman/Rockets/Flight%20Videos/th_TomahawkE18W-711-13-2010.jpg (http://s31.photobucket.com/albums/c355/Handeman/Rockets/Flight%20Videos/?action=view&current=TomahawkE18W-711-13-2010.mp4)

Dale Saukerson
14th November 2010, 10:58 PM
Yesterday I ordered four from the link Jeff provided.
Given that production of #3's has stopped, I'm only slightly hopeful I'll get # 3's.

UPscaler
15th November 2010, 12:03 AM
Given that production of #3's has stopped

what? :eyepop:

RoyAtl
15th November 2010, 12:13 AM
what? :eyepop:

See the Quick Summary on Chuck Lohr's page (http://www.chucklohr.com/808/).

bill2654
18th November 2010, 03:19 PM
Here is my rocket launched this past weekend. http://www.youtube.com/watch?v=fLFBP8bf6h4

rockie
18th November 2010, 04:30 PM
Here is my rocket launched this past weekend. http://www.youtube.com/watch?v=fLFBP8bf6h4

Nice flight ! The video says I300W but its a Blue thunder right ?

jFlds
18th November 2010, 10:30 PM
Nice flight ! The video says I300W but its a Blue thunder right ?

I second that!

Sounded and looked like a blue! Sweet vid!

bill2654
18th November 2010, 10:54 PM
Yup it was a Blue Thunder. Check out the other video I have on U-tube under the name crapsack1000. The Blue Alley had an I 357 and that sucker ripped!!

slogfilet
23rd November 2010, 01:07 AM
See the Quick Summary on Chuck Lohr's page (http://www.chucklohr.com/808/).

I just bought a "#3" camera from ebay user enjoy-secret. I'll post back here if it ends up being a good one. I did have a #3 for a while, but it stopped working. I might try a few things on that website to see if I can get it running again.

Dale Saukerson
23rd November 2010, 01:32 AM
My eBay seller "for-easy-life" stated (without prompting) that he is shipping # 3 models to me as well. It will be another month before I have them but I'll alert all to what I end up with. Just wish it didn't take a month for you to know what I got--so other's could order with confidence.

BBrown
23rd November 2010, 02:01 AM
My eBay seller "for-easy-life" stated (without prompting) that he is shipping # 3 models to me as well. It will be another month before I have them but I'll alert all to what I end up with. Just wish it didn't take a month for you to know what I got--so other's could order with confidence.

Dale,

I've bought several camera's from "for-easy-life" and they have all been #3's. I'm currently waiting on another half dozen.

One thing to remember, these are not high quility units, some work well, others not so well. At under $10 a copy, (about the price of one E-20) be sure to have a spare around.

I'm a little concerned about the near term availability of the #3 camera that's why a bought a pile.

Bob

Moldie
29th November 2010, 12:27 PM
Dale,

I purchased two cams from the same seller, for-easy-life, a while ago. One worked, the other had no audio. Looking again at seller's inventory, he has several keychain cams for sale. They all look the same but at different prices. This is the one I purchased:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=160414582568&ssPageName=STRK:MEWAX:IT

Is that the same one as yours?

Thanks,
Moldie

jessemarder
30th November 2010, 02:04 AM
I have a number 8, I believe, and have a weird issue. It snaps photos fine and can record short videos but then when I have it record for anything longer than a minute or two, Windows Media Player gives me this message: "Windows Media Player cannot play the file. The Player might not support the file type or might not support the codec that was used to compress the file." I tried opening it with VLC but that only resulted in some kind of audio track with no audio/video. It's a newly reformatted SanDisk card, the camera had been charging for an hour or so. Any ideas?

Dale Saukerson
30th November 2010, 02:52 AM
I had already read that really looooong web page about these cameras.
My only hopeful wish is that I get the desirable # 3 units.
Regardless, I purchased four with the understanding that not all may work.

It is certain to be a new adventure for me.

My last camera flight was about fifteen years or so ago.
H238 motor, 35mm film, scratch built rocket and parachutes, self designed electronics with adjustable total exposure count (allowing me to decide how much of the roll to use per flight), focus control wired permanently for infinity.

Mike: yes, same eBay vendor and web page.

Dale Saukerson
3rd December 2010, 01:03 AM
Arrived today. (ordered on Dec 13).
I'll determine later which revision I received.

scsager
3rd December 2010, 03:44 AM
I have a number 8, I believe, and have a weird issue. It snaps photos fine and can record short videos but then when I have it record for anything longer than a minute or two, Windows Media Player gives me this message: "Windows Media Player cannot play the file. The Player might not support the file type or might not support the codec that was used to compress the file." I tried opening it with VLC but that only resulted in some kind of audio track with no audio/video. It's a newly reformatted SanDisk card, the camera had been charging for an hour or so. Any ideas?

Your pc might not have a compatible codec installed. You might try installing the k-lite codec pack (http://www.free-codecs.com/download/k_lite_codec_pack.htm) to see if that resolves the playback issue.

JDcluster
7th December 2010, 12:03 PM
WMP is a bit flaky at times. The format that the cam outputs to is AVI. The old media player can run AVI & Mpeg 2 files while the newer version dropped support for them. You can also use VLC player which will play AVI files. You will still need the codec what ever path that you choose.

It was mentioned on another forum that if you download the K-Lite codec pack you should be able to play the videos.


JD





I have a number 8, I believe, and have a weird issue. It snaps photos fine and can record short videos but then when I have it record for anything longer than a minute or two, Windows Media Player gives me this message: "Windows Media Player cannot play the file. The Player might not support the file type or might not support the codec that was used to compress the file." I tried opening it with VLC but that only resulted in some kind of audio track with no audio/video. It's a newly reformatted SanDisk card, the camera had been charging for an hour or so. Any ideas?

Sandy H.
7th December 2010, 03:35 PM
Just a quick FYI on cameras that die. I've had 2 now that record up until first movement and then they shut down. Both of these have had a small screw loose inside the case (just shake it, if you hear something, its got a screw loose most likely). Once I removed the offending screw, they have been working fine.

Just something to look for.

Sandy.

JDcluster
7th December 2010, 10:00 PM
Here's a program I found on an RC forum. All you have to do is open the Zip file, install the program, after the cam is connected hit: "write to the keychain". It will even recognise which cam that you have in case you have any doubt on which one it is. I'm not sure on how many it will work with though....



JD

JDcluster
7th December 2010, 10:03 PM
From what I've heard; the #3 cam is no longer produced.
Keep your fingers crossed as it comes down to what's left in the discard bin that they pull from....

Here's a link to an older RP that talks about theses little spy cams:
http://www.rocketryplanet.com/forums/showthread.php?t=4997


Good Luck,

JD



I had already read that really looooong web page about these cameras.
My only hopeful wish is that I get the desirable # 3 units.
Regardless, I purchased four with the understanding that not all may work.

It is certain to be a new adventure for me.

My last camera flight was about fifteen years or so ago.
H238 motor, 35mm film, scratch built rocket and parachutes, self designed electronics with adjustable total exposure count (allowing me to decide how much of the roll to use per flight), focus control wired permanently for infinity.

Mike: yes, same eBay vendor and web page.

Dale Saukerson
11th December 2010, 03:00 AM
I received my micro flash cards today and have tested the first of four cameras I received.
The verdict:
This first one is a fully functional # 3 camera.
The earlier (better) # 3 not the later (poorer) # 3.

Great news so far. Testing continues on the other three cameras I received.

Handeman
12th December 2010, 03:52 PM
I finally got around to getting a youtube account, it's AgainHandeman because I messed something up a few times.

Here's the first three vids I got from my type 3 keychain camera.

My son's Aerotech Mustang on a F39-9T at BattlePark on 12/11/2010
FT6ay-9kVrE

My PML Callisto on a G53-7FJ at BattlePark on 12/11/2010
tnMEgAzH6ms

My Estes D-Region Tomahawk on a E18-7W at BattlePark on 11/13/2010
JTR6GbhOuLM

slogfilet
13th December 2010, 06:24 PM
Received my camera, and it appears to bea #3. However, the video quality is not as good as my first one. The framerate doesn't appear to be a full 30, and motion blurs quite badly. Still usable, though.

yohimbe2
14th December 2010, 12:23 AM
I finally got around to getting a youtube account, it's AgainHandeman because I messed something up a few times.

Here's the first three vids I got from my type 3 keychain camera.

My son's Aerotech Mustang on a F39-9T at BattlePark on 12/11/2010
FT6ay-9kVrE

My PML Callisto on a G53-7FJ at BattlePark on 12/11/2010
tnMEgAzH6ms

My Estes D-Region Tomahawk on a E18-7W at BattlePark on 11/13/2010
JTR6GbhOuLM


Very nice ! I was there to see them go up from the ground----great to see from the "rockets eyes"

Now can you get your rocket to stay still a bit so I can see my car better?

Handeman
14th December 2010, 04:33 AM
Received my camera, and it appears to bea #3. However, the video quality is not as good as my first one. The framerate doesn't appear to be a full 30, and motion blurs quite badly. Still usable, though.

Are you using the same type of micro SD card? They have various memory speeds and if you use one that is too slow, you can get issues like you described.

Handeman
14th December 2010, 04:35 AM
Very nice ! I was there to see them go up from the ground----great to see from the "rockets eyes"

Now can you get your rocket to stay still a bit so I can see my car better?

I think that is called the "pause" button :wink:

BayouRat
14th December 2010, 02:42 PM
For the last year I've been buying and using the key FOB cameras from this vendor. I have had great success. I only killed one so far. I've shoved them through Mach and as high as 10,000ft. I just bought four more and plan to incorporate them into a rocket to record all aspects of the flight. For $1.46 and $6.34 shipping I may start buying 10 at a time and selling them.

http://bit.ly/gQj7ka

Here are some of my videos:

0bCzNaufKfM

jAduo0wyv_M

l0AejOMDCnI

You can also pull still shots from the .avi file

BayouRat
14th December 2010, 02:53 PM
Here are some more of the still shots:

luke strawwalker
14th December 2010, 08:39 PM
Man, BR... the rocket in that second vid got some SERIOUS spin rates going as soon as it left the pad!!! Wonder how many RPM's it got up to??? The camera artifacts from the CMOS sensor bending all the lines into a "U" shape was something else!!!

I guess the camera must flutter a bit as it goes through Mach... that would explain the 'wavy' fins in the pic... ever see the vid of a ruler "twanged" on the edge of a table shot with a CMOS sensor?? It looks like a noodle bending into an "S" shape! Doubt the fins flutter (much) or it'd probably shred... but I bet the camera flutters a bit as the shockwave passes...

Anyway, COOL vids! Later! OL JR :)

Handeman
15th December 2010, 01:30 AM
For the last year I've been buying and using the key FOB cameras from this vendor. I have had great success. I only killed one so far. I've shoved them through Mach and as high as 10,000ft. I just bought four more and plan to incorporate them into a rocket to record all aspects of the flight. For $1.46 and $6.34 shipping I may start buying 10 at a time and selling them.

http://bit.ly/gQj7ka



How are you attaching the camera to the rocket for the Mach+ flights? I've been using electrical tape to attach mine on low speed flights, but plan a Mach+ I would like to record.

tbonerocketeer
15th December 2010, 05:33 AM
This was my on-board video. Held on with electrical tape. Flight to 3500ft.
http://www.youtube.com/watch?v=IKshwZY5i68

KHamel
16th December 2010, 07:37 PM
My onboard video the keychain cam is held on with masking tape.

7-OAlFubiBg

JDcluster
19th December 2010, 04:15 AM
What are you guys using to edit the clips?
I have a new 9 min clip that I need to shorten it on both ends.


Thanks

JD

Handeman
19th December 2010, 05:08 AM
There's lots of video editing software available, some freeware, some shareware, and some commercial. I've been using Avidemux 2.5 to trim the long boring pad and grass stretches out.

Rocketman248
19th December 2010, 05:08 AM
I use iMovie, but I'm a die hard Apple fanboy. You could also do a quick and dirty trim in Quicktime.

bill2654
19th December 2010, 06:47 PM
If you have Windows 7 then you can download Windows Movie Maker free. It's pretty basic but it suits my needs.

Handeman
19th December 2010, 10:45 PM
If you have Windows 7 then you can download Windows Movie Maker free. It's pretty basic but it suits my needs.

You can get Windows Movie Maker with any version of windows from XP up. I think it comes pre-loaded with some versions of Windows 7 but you can download it for the rest.

JDcluster
19th December 2010, 11:35 PM
Thanks!
It was already loaded with my Win 7 Ultimate 64bit edition.

Video to follow.

JD



You can get Windows Movie Maker with any version of windows from XP up. I think it comes pre-loaded with some versions of Windows 7 but you can download it for the rest.

JDcluster
20th December 2010, 12:24 AM
emOhT_Iuty8?fs


JD

slogfilet
22nd December 2010, 11:03 PM
Are you using the same type of micro SD card? They have various memory speeds and if you use one that is too slow, you can get issues like you described.

Yep, using the exact same SD card. I need to pick up another one, so I might as well get a higher speed just to be safe. If I notice any difference, I'll report back!

slogfilet
23rd December 2010, 06:17 PM
Same issue with a faster card. Info at www.chucklohr.com/808 (the holy grail of keychain cam info) indicates that the latest batch of #3 cams are dropping 33% of frames.

Lame. I guess it's juts a game of trying to find a good batch, then buying enough to last a lifetime!