Bluetooth Commander is a Bluetooth terminal application for managing low-level communication between your Android smartphone and Bluetooth devices such as microcontrollers, arduinos, processor boards, or other Bluetooth terminals. The application allows simultaneous connections to multiple devices with traffic diagnostic functions and contains an interface to create a database of user-defined commands.
+ Connection and communication with multiple Bluetooth devices simultaneously
+ 3 available interface designs (list, gamepad and fully customizable interface)
+ Editor to create commands in hexadecimal or text format
+ Simple click-through interface
+ Time-based (recurring) streaming options
+ Advanced registration functions, registration of multiple connected devices, color differentiations, time stamps

Supported Android
(4.1 and up)
Jelly Bean (4.1 – 4.3.1),KitKat (4.4 – 4.4.4),Lollipop (5.0 – 5.1.1),Marshmallow (6.0 – 6.0.1),Nougat (7.0 – 7.1.1),Oreo (8.0-8.1), Pie(9.0)