sorry I don't understand what your comment has to do with my question ?
g43q654wutrjh:
i have a separate device that has a push button switch.is there a simple way to use the arduino to trigger the switch?
like a relay or like a transistor or is there a way without?
for example a led torch, the switch is not switching the power to the led only switching (triggering) an IC to turn on the torch.
thanks