Bluetooth is a popular wireless technology that allows devices to exchange data over a short range without the need for a wired connection. This can be useful in a variety of situations, such as when you want to connect to a device that is not in your immediate vicinity, like when you are connecting to a device that is far away. In addition to sending and receiving text messages, devices that support Bluetooth can also send and receive other data, like audio and video files.

With the Arduino Bluetooth Control app, you can easily connect to your Arduino board, and send and receive data over Bluetooth. You can also connect to your board using the built-in wireless network, which will allow you to send and receive text messages, as well as exchange audio and video files.