In the documentation: https://docs.emlid.com/navio2/ardupilot/tips/
is mentioned that the relay function is only available on ArduCopter? For my new project I will need a relay switch on a Rover. What would you recommend doing? Installing ArduRover and look for a workaround or just instal Arducopter and chang all the parameters to work on the rover?
the Rover needs 4 PWM outputs: 1 for the main motor, 1 for steering, 2 for a robot arm.
1 Digital output to control a relay.