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Did you see that one? Video of it's performance can be seen here.

Have a look at this page.

Maybe consider Flashing WeeBee: https://www.youtube.com/watch?v=Qp0eJ2jakGk As Stefano tested it on the ground he reported that he could hear it from 300 meters away. Besides Flashing WeeBee starts flashing when it gets dark, so you may see it well...

Hi, few WeeBees will be given to Ozzies and to the USA rocketeers who have contacted me today. There is one Flashing WeeBee available for European fliers.

Hi, I got first tests of Flashing WeeBee from Stefano. That's what he wrote: Anybody interested in testing Flashing WeeBee? I've got few of them that are meant to be given away (for free) for testing... Send me a PM if interested.

Flashin WeeBee cannot be heard for a mile however, you would hear it (during the night see it) when rocket is descending. Check out this video. On my desk I am testing a Mega beeper with 105 dB :cool: which is so loud that it's unbearable to test in the room.

Imagine night rocket launch, rocket in the dark launches off and as it flies it starts to flash during the flight and then when shute opens flashes all the way down... During daytime it would beep all the way down.

Hi, I've done Flashing WeeBee which flashes during the night and beeps during the day. Video is at: https://www.youtube.com/watch?v=Qp0eJ2jakGk You will see in the video how strong flash is.

Sure I can - this is a test version on my desk. I could maybe make 3-4 quick flash strobes and then have a longer pause. This however would dramatically increase power consuption, not to mention heating of LED, means LED should be mounted on suitable heatsink :(

Yes... but: go ahead and callulate energy losses with quiescent current of 78L05 (5mA) and 10 microA (in the same time). The current that device uses on load may be high however, but it takes very short time. Let's see: 10 microA * 3 seconds =30 microA seconds (low quiescent current...

Hi Dexter, is there any particullar reason that you used 78L05 regulator? If I were you I'd use any other, low consumption one, there are chips at Linear Technology which draw less than 10 microA (!!) and deliver some 80 mA at output, which is more than enough for a microcontroller.

Hi, well this is the best that I could record, but really looks much better in live. Here is the video of low power flash, and here is the powerfull version. In the first video LED is driven with microcontroller, in the second via 2 powerfull FETs. I will have to launch both to see how they...

Oh I can imagine it, gliding down and flashing :D I wish I could record flashing during night to be adequate - imagine flash that airplane has - well this flash is kind a smaller, less powerfull, but still very well seen flash!

Yes: beeper is declared to have SPL (sound pressure level) 85 dB @ 0.1m (3,94 inch). Well, it's one of the loudest we could find which operate at 5V and have such a high SPL. All other beepers are miles away. I can easily hear it in distance of over 50 meters (164 feet), while flash can be seen...

Hi, DexterLB, name is in the process of copyright. DAllen, WeeBee can be bought at Sierrafox (<[email protected]>). I was contacting some American distributors, but I got no reply from them :( Maybe you guys should encourage them and start asking for the WeeBee and it's...

Battery lasts many years in my very first prototype. For a real test I would have to design a device which would turn device ON/OFF and measure SPL (sound pressure level) + time. Just for a laugh I left one device beeping constantly. It was beeping just a bit less then 24 hours, when I turned it...

Hi, I have done this simple beeper with powerfull flashing LED: https://www.youtube.com/watch?v=m6tb76LirxM These new powerfull LEDs flash like mad, unfortunately flashing can't be seen well in the video. Next version will beep during the day for 1 hour and flash during night also for 1...