How much do you have tied up in it? I love the performance, and want to copy it, but need to figure out how to make it work with just telemetry, as I don't want to do a full blown FPV+Audio feed. Thanks in advance for the help!
Pretty cool little circuit ! Makes me want to get my 2 meter sail planes out of storage and start flying them again Thanks for posting I am glad that I ran across it maybe I'll pick up a few clones & build a few for winter projects It is going to be a Looong Cooold Winter in NE Oh this only makes me want summer back even more!!!! LOL
another out-of-the-box idea. how about having the audio output (when flying level) just be an intermittent beep, and then go up when lifting & pitch down while losing altitude. Great job once more! Russ from Coral Springs, Florida, USA
Yes, but I suspect you might need to adjust the scale a bit. This one maxes out (like at 11:55) at rates that might be reasonable for a model, but full-scale could be climbing and descending quicker.
I think a baro like this typically also has a thermometer, which is necessary to compensate the raw pressure reading and get a proper value. Yep: www.amsys.info/products/ms5611.htm So I think it is continually sensing the temperature all the time - the number is there if you care to record it somehow.
Some buzzers make the same pitch whenever 5v is applied. Other buzzers only move the diaphragm, so to make a pitch requires the voltage to be turned off and on very quickly. The second one is what you want, so the pitch can be modified. I don't know exactly what each is called though sorry.
If you want to build one for paragliders which sounds like this: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-2OTXBQcNtwI.html You have to use this code: gist.github.com/EDsteve/2e57fd72ad7cb3c0e737813507e23591
like one of these ATtiny breakout boards www.aliexpress.com/item/Digispark-Kickstarter-ATTINY85-For-Arduino-General-Micro-USB-Development-Board/32668399070.html?src=google&albslr=227945310&isdl=y&aff_short_key=UneMJZVf&source=%7Bifdyn:dyn%7D%7Bifpla:pla%7D%7Bifdbm:DBM&albch=DID%7D&src=google&albch=shopping&acnt=494-037-6276&isdl=y&albcp=756822904&albag=35305934810&slnk=&trgt=61865531738&plac=&crea=en32668399070&netw=g&device=c&mtctp=&gclid=Cj0KCQiAgNrQBRC0ARIsAE-m-1xOBUgJ6llQ58H3WyLusQnubGJNeRl4TaJksxHTKGuNyG_jjOyt77kaAnMMEALw_wcB
Looks like it could work. I've never used ATtiny before but I looked into it a little just now, if you replace the Wire calls with TinyWire equivalents (github.com/sudar/TinyWire) it compiles with this memory usage: Sketch uses 4948 bytes (60%) of program storage space. Maximum is 8192 bytes. Global variables use 118 bytes (23%) of dynamic memory, leaving 394 bytes for local variables. Maximum is 512 bytes.
I think I saw a comparison somewhere showing MS5611 is slightly better. But for this purpose you would not notice any difference, and the sketch is already set up to use MS5611.
