I have an older px4 (circa 2014) – i flashed it from a copter and am putting it into a fpv wing with one motor.
I have a dragonlink plugged into the RC In of the pixhawk, with the ESC going into servo 3 of the pix hawk for the throttle. (elevens are plugged into input 1/2 of pixhawk). Servo 3 in mission planner is set to 70 for throttle.
I am trying to set up the failsafe, but when I turn off the RC, it does go into circle—> RTL, but the engine completely turns off.
I have tried my other L9R receiver and even a different esc that I know has worked fine before, but they all have the same result: engine turns off when RTL is engaged. This happens even when I switch from FBWA to RTL.
Any suggestions? Could it be that the pixhawk thinks its already “home” or not moving/flying so it turns off the throttle (I am testing on my workbench)?