Depending on your choice of audio player, you may prefer a 3.5 mm aux jack ... In final form, a Bluetooth module and Arduino Pro Micro are stuffed inside the stereo along with a DPDT relay ...

This is a simple project. It uses an Android device to switch an LED driven by the Arduino. Connectivity is provided by the Bluetooth module inserted in the breadboard. But one look at the UI on ...

Makers, developers and hobbyists that are looking for a low-cost Bluetooth ... module and Atmega328p to communicate both messages from the client which can be PC, Mac, iOS or Android to the Arduino.