Hello Arduino Community,
I want to build a model rocket flight computer, that ignites a model rocket motor using a standard model rocket igniter. My idea is that my Arduino Pro Mini(the 3.3v version) first checks continuity with the igniter and then fires it after a countdown. My Igniter needs 2A to fire and the manufacturer states, that continuity checks shouldn't use higher currents than 1-2ma. This entire system is powered by a 2s(7,4V-8.4v) lipo battery. Without the continuity check, I designed this small circuit:
But now I don't know how I can add continuity detection. I would appreciate any help with that. To safe cost, I would prefer a solution without a current sensor. I am a newbie with electronics, so a relatively simple solution would be best.
Thanks in advance,
Fazeli24
8 posts - 5 participants