Auto turning lights on and off

[anparkinson]

What is the easiest way to turn lights on at one waypoint and off at another on my plane with Pixhawk in Auto mode?

I have a suitable receiver controlled on/off switch but am not sure what commands in Mission Planner to use.

[james_pattison]

DO_SET_SERVO is what you’re after.
http://ardupilot.org/copter/docs/common-servo.html