Eggfinder LCD - Handheld Display Receiver for Eggfinder GPS Tracker

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It sounds horrible but if you follow the instructions here: https://www.eggtimerrocketry.com/page29.php
It's not too bad. WinAVR is available here: https://sourceforge.net/projects/winavr/files/WinAVR/20100110/

If your connected unit is not on COM 2 it's a piece of cake to edit the file to your given com port. I've messed with it
many times in the past and have never wrecked any of my units. If the cable is connected wrong, it just doesn't flash.

There's a little knack in getting it started but if the connections are good you'll get the button pushing timing right.

Now when you say quit working what do you mean? I'm waiting for Cris to send me a new LCD as my unit in the yellow case will work for awhile and then all of a sudden the screen goes blank. The data keeps coming across the Bluetooth link. I took it out of the case and the same behavior was seen. Sometimes the thing has to run 2 hours and then the LCD goes blank. Switch off/on and then it comes back. Sometimes goes blank in 5 minutes....

I'm hoping it's not the mainboard in mine but is this the behavior your unit is doing? Might not be the firmware then.
Kurt Savegnago
 
Thanks for the advice Kurt but Im a total dummy when it comes to computers. I have had someone already offered to help walk me thru it but I had to decline.
I tried a couple months ago to try and reset the freq on one of my Tx's and it almost ended up splattered againt the wall I got so frustraited. Needless to say it
is still on the wrong freq. I really do appreciate your advice but I just CAN"T and do this myself.
 
[video]https://youtu.be/j1SMT_G_B-w[/video]

Here is a video of what happens when I turn it on.
 
I've seen things dork the flash: shorting out pins, static etc. Reflashing fixes it. The Atmel chips are pretty hardy, it's really hard to kill one.
 
[video]https://youtu.be/j1SMT_G_B-w[/video]

Here is a video of what happens when I turn it on.

Did it work at any time in the past? Could be a bad LCD then. Mine is working for a time and then goes blank. Do you have a B/T module? If so connect it up and see if it still sends packets to your phone. Kurt
 
I need HELP!! I have a LCD receiver and I got a new case from BLKKRW and after transferring it to it's new case, it quit working.
Well I contacted Cris and he told me I need to reflash it. Well I know this is a DIY kit but when it comes to computers, Im a total caveman.
I need someone who has done this before and is familiar with programing EF's. I will also need the EF installed into the new case when finished
reflashing. I also have 1 TX that I need to have the freg reset. I tried but no luck. I will be glad to pay for your services but if you prefer to
keep these arrangement private, PM me and we can work something out. Cris is just too busy to get to this and I have had an offer
from someone here (Thanks Steve) to walk me through the procedure but I just cant go that route. Thanks in advance.
Bump
 
Got my GPS kit last night in the mail. Excellent. Now to shop around for a micro tip soldering iron...

Looking forward to getting this built.

Mike
 
Mike, you may not need a smaller tip. I have a Hako Temp controlled station with a 2mm chisel tip. I have no problem soldering any of the EF products. I set mine at 700 deg F. I even solder SM components smaller than EF kits. There is an excellent video on soldering that shows the difference between a 2mm chisel and a conical tip. I will try to find it again. A smaller tip does not transfer heat as well. I find that the larger tip lets me get in and out faster and not overheat the component.
 
Ahhh, here it is. Dave at EEV has excellent videos. Take a look at all 3.

[video=youtube;fYz5nIHH0iY]https://www.youtube.com/watch?v=fYz5nIHH0iY[/video]
 
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