not sure a 9v is the proper battery - i just assume it is because all you are really running is 3 leds and the pro mini..
You forgot to mention all the waste heat in the regulator that will rapidly burn a hole in your pocket.
not sure a 9v is the proper battery - i just assume it is because all you are really running is 3 leds and the pro mini..
You forgot to mention all the waste heat in the regulator that will rapidly burn a hole in your pocket.