Arduino Bluetooth Controller

설명 Arduino Bluetooth Controller

Site Editorial Commentary：Control any micro-controller that uses a Bluetooth module with your smartphone

Are you an Arduino enthusiast looking to remotely control your projects using your Android phone but lack the time, patience, or expertise to develop a custom Bluetooth conTroller? Then the ARDUINO BLUETOOTH CONTROLLER is the perfect solution for you!

This Android application establishes a seamless connection with any Arduino or microcontroller project equipped with a Bluetooth module. A key feature is the ability for users to specify their own Bluetooth module's UUID, ensuring compatibility with a wide range of projects. The default UUID is pre-configured for the popular HC-06 Wireless Serial 4 Pin Bluetooth RF Transceiver Module RS232. (note: When using the default UUID for initial pairing, the password is '1234').

The application offers 4 versatile Command Modes:

1. Vehicle Mode: Activate this mode and use the on-screen "joystick" to control a vehicle with intuitive gestures. The app utilizes your device's built-in accelerometer to translate gestures into commands, offering 8 distinct directional controls: FRONT, BACK, LEFT, RIGHT, FRONT_LEFT, FRONT_RIGHT, BACK_LEFT, BACK_RIGHT.

Customize these gestures with your own commands via the "Set Commands" menu. Additionally, dedicated STOP and ANDROID buttons can also be assigned custom functions.

***IMPORTANT*** This mode includes options to adjust the accelerometer axis orientation (X->Y, Y->X) to ensure proper operation across different Android phone orientations.

Furthermore, a sensitivity adjustment allows you to fine-tune the gesture recognition threshold. As the name implies, this mode is specifically tailored for remotely controlling Vehicles incorporating a Bluetooth module and a microcontroller.


2. Fader Mode: This mode provides a fader-seekbar interface, enabling you to send commands ranging from 0-9. Ideal for experimenting with servos, LEDs, motors, and more.

3. Controller Mode: Enjoy a standard controller layout with 10 customizable buttons. The arrow buttons are designed to send commands continuously while pressed, simulating the behavior of a traditional gamepad.

4. Terminal Mode: This mode offers a terminal-like interface for typing and sending individual or sequential commands. The application intelligently divides strings into individual characters and transmits them one-by-one to the Arduino, accommodating the Arduino's serial port byte-by-byte reception. Note that spaces and empty strings are automatically skipped.

All application settings and commands are permanently stored, allowing for easy access and modification to suit your specific project needs.

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Arduino Side Code

Below is a sample Arduino code snippet demonstrating how to listen for commands received from this Android application:

char incomingByte; // variable to receive data from the serial port

void setup() {
Serial.begin(9600); // start serial communication at 9600bps
}
void loop() {
if( Serial.available() > 0 ) // if data is available to read
{
incomingByte = Serial.read(); // read it and store it in 'incomingByte'
}

}
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