A free app for Android, by keuwlsoft.

Bluetooth Electronics is a free, interactive learning tool that allows you to control an electronic device using your Android smartphone or tablet. It is designed to be used in a hands-on way, so that you will be able to experiment and discover the behavior of various electronic circuits.

This app is based on a library of examples that can be used to create your own projects. Each example contains an explanation, a circuit diagram, and the necessary code to implement the example. You can also import the examples into your projects.

This app is a learning tool that is very easy to use. All you have to do is download it, install the required modules, connect to the device, and start playing.