I've got hold of a Bluetooth controller module. But I do not know whether is should be supplied with A/C or D/C voltage (and if DC then what voltage). Is there a way to go about determining this?
I've got a picture of the PCB. 2 wires are the supply and the 3rd wire is a switched live activated when bluetooth remote control is pressed.
I've got a picture of the PCB. 2 wires are the supply and the 3rd wire is a switched live activated when bluetooth remote control is pressed.