Bluetooth Controlled Rocker Bogie Robot Kit

// ——– Bluetooth Controlled Rover ——–
// SmartXProKits Student Edition
// ——————————————–

// Define motor driver pins
const int motorA1 = 2;                          // Left Motor Forward
const int motorA2 = 3;                       // Left Motor Backward
const int motorB1 = 4;                       // Right Motor Forward
const int motorB2 = 5;                     // Right Motor Backward

char command;                              // Variable to store incoming Bluetooth command

void setup() {
// Initialize Serial Monitor and Bluetooth communication
Serial.begin(9600);

// Set motor control pins as outputs
pinMode(motorA1, OUTPUT);
pinMode(motorA2, OUTPUT);
pinMode(motorB1, OUTPUT);
pinMode(motorB2, OUTPUT);

// Initially stop the rover
stopRover();

Serial.println(“Bluetooth Rover Ready. Waiting for commands…”);
}

void loop() {
// Check if data is available from Bluetooth module
if (Serial.available() > 0) {
command = Serial.read();                              // Read the incoming command
Serial.print(“Received Command: “);
Serial.println(command);

// Stop rover before executing new command
stopRover();

// Execute command
if (command == ‘F’) {
forward();
}
else if (command == ‘B’) {
backward();
}
else if (command == ‘L’) {
leftTurn();
}
else if (command == ‘R’) {
rightTurn();
}
else if (command == ‘S’) {
stopRover();
}
}
}

// ——– Movement Functions ——–

// Move Forward
void forward() {
digitalWrite(motorA1, HIGH);
digitalWrite(motorA2, LOW);
digitalWrite(motorB1, HIGH);
digitalWrite(motorB2, LOW);
Serial.println(“Moving Forward”);
}

// Move Backward
void backward() {
digitalWrite(motorA1, LOW);
digitalWrite(motorA2, HIGH);
digitalWrite(motorB1, LOW);
digitalWrite(motorB2, HIGH);
Serial.println(“Moving Backward”);
}

// Turn Left
void leftTurn() {
digitalWrite(motorA1, LOW);
digitalWrite(motorA2, HIGH);
digitalWrite(motorB1, HIGH);
digitalWrite(motorB2, LOW);
Serial.println(“Turning Left”);
}

// Turn Right
void rightTurn() {
digitalWrite(motorA1, HIGH);
digitalWrite(motorA2, LOW);
digitalWrite(motorB1, LOW);
digitalWrite(motorB2, HIGH);
Serial.println(“Turning Right”);
}

// Stop Rover
void stopRover() {
digitalWrite(motorA1, LOW);
digitalWrite(motorA2, LOW);
digitalWrite(motorB1, LOW);
digitalWrite(motorB2, LOW);
Serial.println(“Rover Stopped”);
}

This sketch lets the rover respond to commands 'F', 'B', 'L', 'R' sent from your smartphone via Bluetooth.