Connect Anduino is a free app that makes it easy to connect your Android phone to a Bluetooth or USB device. It also allows you to control the device through the phone, using either Bluetooth or USB.

It works with many Android phones, including the latest versions. You can also use it with many other Bluetooth or USB devices, such as wireless earbuds, heart rate monitors, and activity trackers.

It is compatible with many microcontroller units (MCUs), such as the AVR, the microcontroller used in most DIY projects. You can also use it with the Arduino, a popular microcontroller that is compatible with many hardware and software packages.

You can also use it to connect to a remote server, allowing you to control it from your phone.