In this Arduino tutorial, we are going to learn how to use the HC-06 Bluetooth module to communicate with an Android app.
The Bluetooth module is really cheap. It costs around 5$ and you can get it from the links below. Also we are going to need a level converter in order to convert the 5V levels to 3.3V levels that the Bluetooth module requires.
💻 Code & Parts: http://educ8s.tv/arduino-bluetooth-tutorial