I am wanting to use this with an arduino to activate the two on board relays. Is that what P5 an P6 are for?? I would like to be able to control the relays manully via a arduino or other micro controler??
thank,
Our onboard ports are for 402u receiver to control other relay boards, not the other way around.
See photo below for clarification.
As for P5, P6 they are simple limit switches input to turn off onboard relay, not able to activate (turn on).