I've used the config.g file for setup, connected signal/ground on esc into fan 8 on the duex5, and have been unable to get the motor to respond using either the "M280 P7 S50" or M42 P7 S0.5" commands in gcode. Any guidance? My ESC seems as though isn't not receiving a proper PWM signal but I don't have an Oscope at the moment to verify. I am getting a range between 0 and 5V depending on S value. I presume that I can send a gcode command and start the motor to test things out.