Inspired from my last project Segway, this instructables is all about a toy robot car controlled using T.V ir remote. I would use it to controlling segway with this stuff in the next one . Ok its all done with the help of arduino and ir sensors. The toy car can also vary its speeds using 4 speed levels you can find it in the VIDEO.

Step 1: You Need This!

All you need for this project is

Arduino,

TV remote (ir)

L293D driver shield

2 BO motors and wheels

,2 9V battery,

IR sensor TSOP SM0038

Wires etc.

Driver shield using motor driver L293D can be made easily using circuits from net I have ready made.

Step 2: Just Build It..

Prepare robot base using cardboard; set motors and wheels as adjustable. I have not used balance wheel as it wont required.

You need to add IR remote library for programming

Find codes of your IR remote using examples of IR remote library.

#include

int RECV_PIN = 12;

IRrecv irrecv(RECV_PIN);

decode_results results;

void setup()

{ Serial.begin(9600);

irrecv.enableIRIn();

}

void loop() {

if (irrecv.decode(&results))

{ remote = results.value;

Serial.println(remote);

irrecv.resume();

}}

Step 3: Program It

Forgot about connections! is very simple connect as below

//motorn pins

PWM 5-- left motor input 1

PWM 6-- left motor input 2

PWM 9-- right motor input 1

PWM 10-- right motor motor input 2

//IR receiver

Arduino pin 12--output of IR

+3vcc--- Vcc of ir

GND-- gnd of ir

I have attached the codes you can directly upload it

#include

int RECV_PIN = 12;

IRrecv irrecv(RECV_PIN);

decode_results results;

int remote = 0;

int spd = 0;

int s1 = 100;

int s2 = 150;

int s3 = 200;

int s4 = 250;

void setup()

{

pinMode(5, OUTPUT);

pinMode(6, OUTPUT);

pinMode(9, OUTPUT);

pinMode(10, OUTPUT);

Serial.begin(9600);

irrecv.enableIRIn(); }

void loop() {

if (irrecv.decode(&results))

{ remote = results.value;

Serial.println(remote);

irrecv.resume();

}

if (remote == 10965)

{

spd = s1; }

else if (remote == 26775)

{ spd = s2; }

else if

(remote == -22441)

{ spd = s3; } else if

(remote == 2805)

{ spd = s4; }

if (remote == 22695)

{ analogWrite(5, spd); digitalWrite(6, LOW); digitalWrite(9, LOW); analogWrite(10, spd);

} else if (remote == -7651)

{ digitalWrite(5, LOW); digitalWrite(6, LOW); digitalWrite(9, LOW); analogWrite(10, spd); }

else if (remote == -8161)

{ analogWrite(5, spd); digitalWrite(6, LOW); digitalWrite(9, LOW); digitalWrite(10, LOW); }

else if (remote == 4845 ) { digitalWrite(5, LOW); analogWrite(6, spd); analogWrite(9, spd); digitalWrite(10, LOW); }

else if (remote == -16321 ) { digitalWrite(5, LOW); digitalWrite(6, LOW); digitalWrite(9, LOW); digitalWrite(10, LOW); }

}