Bluetooth Terminal is a free terminal application for Android that allows users to send and receive data between Bluetooth devices. The app is a reprogramming of BluetoothChat, a sample code from android.com, and comes with additional features, such as the ability to save all send and receive data to a file. The file is saved in /sdcard/********.log, where ******** represents the date in the format yyyyMMdd.

Bluetooth Terminal is a useful tool for those who need to communicate with Bluetooth devices. The app allows users to display data in hexadecimal format and send hexadecimal text. The app also has an option to append a newline automatically when data is sent. Additionally, the app has a "keep screen on" feature to prevent the screen from turning off while in use.

It is important to note that data sent through the app must have a newline, as the app relies on it to display data. Overall, Bluetooth Terminal is a reliable and convenient tool for those who need to send and receive data via Bluetooth on their Android device.