Arduino Based Robot Car using HC-05 Bluetooth

Bluetooth Controlled Robot using Arduino

In this project, I will show you how to design and develop a Bluetooth Controlled Robot using Arduino, HC-05 Bluetooth Module and L298N Motor Driver Module. On the other end of the Bluetooth Communication, I will be using a Smart Phone and a simple Android App to control the Robotic Car.

VIDEO 

 

CIRCUIT DIAGRAM :-

CODE :-

//Prateek //www.prateeks.in char t; void setup() { pinMode(11,OUTPUT); //left motors forward pinMode(10,OUTPUT); //left motors reverse pinMode(9,OUTPUT); //right motors forward pinMode(8,OUTPUT); //right motors reverse pinMode(7,OUTPUT); //Led Serial.begin(9600); } void loop() { if(Serial.available()){ t = Serial.read(); Serial.println(t); } if(t == 'F'){ //move forward(all motors rotate in forward direction) digitalWrite(11,HIGH); digitalWrite(10,HIGH); } else if(t == 'B'){ //move reverse (all motors rotate in reverse direction) digitalWrite(9,HIGH); digitalWrite(8,HIGH); } else if(t == 'L'){ //turn right (left side motors rotate in forward direction, right side motors doesn't rotate) digitalWrite(9,HIGH); } else if(t == 'R'){ //turn left (right side motors rotate in forward direction, left side motors doesn't rotate) digitalWrite(11,HIGH); } else if(t == 'W'){ //turn led on or off) digitalWrite(7,HIGH); } else if(t == 'w'){ digitalWrite(7,LOW); } else if(t == 'S'){ //STOP (all motors stop) digitalWrite(11,LOW); digitalWrite(10,LOW); digitalWrite(9,LOW); digitalWrite(8,LOW); } delay(100); }