Dear Guys, when doing a motor test I noticed that PWM output of our Pixhawk cube was different in the no 1 motor output, being approx 0.68 V at low value, when moving the throttle up it reached only 1.15 Volt. When the motor was increasing speed there were brusk changes and shocks, which were quite scary. Also when slowing down these shocks occurred. All the other motor outlets were doing 1.41 V when throttle down and with a max of ca 1.8V. Here the motors (we tested a number of motors) were smoothly reacting when increasing, decreasing speed. It seems to be a hardware thing? Does anyone know how this failure ( low voltage at PWM 1 motor outlet can be caused and if it can be corrected?
Hope to hear, Best Winfried, Drone4agro.com