I've recently bought an LM386 module (picture), to build a mini amplifier. I found out how to connect a speaker to it, but I can't connect sound output. What kind of plug/jack do I need?
The pins are labelled: GND (power supply 0V), GND (input ground), (IN) input, and VDD (positive power supply).
The module should have supplied a matching connector for the pins but instead you can solder wires to them.