"Yes, I've measured it with an oscilloscope and not seen any irregularities. I have also added a Zener diode to the servo rail to restrict the voltage to less than 5.6V. And I've used two different ESC's (same model, though) and had the same…"
"That was one of my first thoughts, but no, I definitely am not using the VCC wire, just the GND, TX and RX connections. To be clear, btw, the two systems have the same power supply, the LiPo battery (11.1V, 3S). The Pixhawk and the ODROID are both…"
I have fried three Pixhawk Mini's and I still have no clue why.I am using the autopilot on a 3D foamy fixed-wing. The wiring setup is like this, except that:- the 8 channel PWM board is also powering the aileron, elevator, and rudder servos (the…