I am rewriting the void loop() function in arduplane to use it as a system to control airbrakes on a rocket. I want to be able to control an actuator using a high signal to turn the actuator on and a low signal to turn the actuator off using the servo outputs. I am having difficulties tracking down what commands are used to control the servo outputs. I haven't been able to use digitalWrite() but that is in essence the command I would want to use if I could. I know the outputs are pwms and if they have to be used that way that is fine. I just want to know the commands to output a signal from the first 4 outputs.