Bluetooth Car using arduino

In this project we are going to develop a Bluetooth controlled robot car. Here we used a Bluetooth module to control the car, and it is also an android based application.

App Link

https://drive.google.com/file/d/10b5wiTVtaOGPOpQoJW6_Mmb6KqiOy_7W/view?usp=sharing

Arduino Code:

/* modified by Rishikesh Kumar on 29/10/2018 Tx (Bluetooth module)-Rx (Arduino Uno)

Rx (Bluetooth module)-Tx (Arduino Uno) */

int InA1= 5; // MOTOR CHANNEL A1

int InA2 = 6; //MOTOR CHANNEL B1

int InB1 = 9; //MOTOR CHANNEL A1

int InB2 = 10; //MOTOR CHANNEL B1

int vel = 255; // SET MOTOR SPEED (0-255)

int state = 'g';

void setup() {

Serial.begin(9600);

pinMode(InA1, OUTPUT);

pinMode(InB1, OUTPUT);

pinMode(InA2, OUTPUT);

pinMode(InB2, OUTPUT);

}

void loop()

{

if(Serial.available()>0)

{

state = Serial.read();

}

if(state=='F'){ // FORWORD

analogWrite(InB1, vel);

analogWrite(InB2, 0);

analogWrite(InA1, vel);

analogWrite(InA2, 0);

}

if(state=='L'){ // LEFT

analogWrite(InB1, vel);

analogWrite(InB2, 0);

analogWrite(InA1, 0);

analogWrite(InA2, vel);

}

if(state=='S'){ // STOP

analogWrite(InB1, 0);

analogWrite(InB2, 0);

analogWrite(InA1, 0);

analogWrite(InA2, 0);

}

if(state=='R'){ // REVERSE

analogWrite(InB1, 0);

analogWrite(InB2, vel);

analogWrite(InA1, 0);

analogWrite(InA2, vel);

}

if(state=='K'){ // RIGHT

analogWrite(InB1, 0);

analogWrite(InB2, vel);

analogWrite(InA1, vel);

analogWrite(InA2, 0);

}

}