Currently I'm using an IR LED connected directly to a PCB where an Arduino UNO is connected. When I send a command with the Arduino, the LED sends what I want to an IR receiver.
Now I'm thinking to change a bit this solution, because I want to extend the IR emitter, but not with some loose wires, I want to use a jack 3.5 cable.
Can I just use a mono cable, connecting the two wires to the PCB, and at the other end connect the male plug to a female 3.5 mono plug, where the LED will be soldered? I don't need to have much power because the emitter and the receiver will be very close to each other.
So, my ultimate doubt is if it'll work with a mono cable or do I need a stereo one?