Lost plane beacon using openLRS RX.
Donations for development tools and utilities (beer) here https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=DSWGKGKPRX5CS
See the beginning of the code for contiguration options.
Optionally input PWM from receiver to ch4 to keep the beacon deactivated unless failsafe is set.
Supported hardware: OrangeRX UHF RX http://www.hobbyking.com/hobbyking/store/__27096__OrangeRx_Open_LRS_433MHz_9Ch_Receiver.html
Flytron openLRS RX v2 http://www.flytron.com/openlrs/146-openlrs-receiver-v2.html