h1. "planefinder":https://github.com/tmeissner/avr/tree/master/planefinder p(. A small device which is used to find model planes which landed somewhere in the field. The device works as follows: # Device is switched on # Short buzzer tone for function test # 20 minutes nothing happens ;) # Short buzzer tones, alternating by the two buzzers # You find the plane and switch off the device ;)