The MonkMakes Powered Speaker is an easy to use amplified speaker on a PCB.
The board needs a 5V power supply that can be provided by a Raspberry Pi or Arduino. Audio input will normally be to the 3.5mm stereo audio jack socket, which is mixed to a mono signal as there is just a single speaker on the board.
This is also available as a kit for the Raspberry Pi.
Resources
- Instructions
- Datasheet