LAB( L293D + ARDUINO CHIP + BREADBOARD )
by It World Education in Circuits > Arduino
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LAB( L293D + ARDUINO CHIP + BREADBOARD )
In this Instructables, I will explain the concept behind the LAB rc car & hopefully provide enough information to build this efficiently.
Objective
Lets build remote controlled robotic car from scratch.
Parts Required
Breadboard
Atmega328p-pu [ Arduino Uno Chip ]
L293D [ Motor Driver IC ]
IR Receiver
7805
10uF x 2 Capacitor
IN 4007 Diode
9v x 2 Battery
22pF x 2 Capacitor
16mhz Oscillator
10k resistor
220 ohm resistor
DC Motor x 2
Chassis
Some Wires
Breadboard Arduino
Prepare Arduino on breadboard & atmega328p-pu micro-controller using the following layout.
Breadboard L293D
Enable 1,2 ---> +5v
Enable 3,4 ---> +5v
VCC1 ---> +5v
VCC2 ---> +9v to +12v
GND --- > GND
INPUT 1 ---> D7
INPUT 2 ---> D8
INPUT 3 ---> D9
INPUT 4 ---> D10
OUTPUT 1 ----> DC Motor A Red Wire
OUTPUT 2 ----> DC Motor A Black Wire
OUTPUT 3 ----> DC Motor B Red Wire
OUTPUT 4 ----> DC Motor B Black Wire
IR Reciever
Out ---> D4
Arduino Programming
#include<IRremote.h>
int rightforward=8,rightbackward=7,leftforward=10,leftbackward=9;
int RECV_PIN=4,decode;
IRrecv irrecv(RECV_PIN);
decode_results results;
void setup()
{
pinMode(leftforward,OUTPUT); pinMode(leftbackward,OUTPUT);
pinMode(rightforward,OUTPUT); pinMode(rightbackward,OUTPUT);
irrecv.enableIRIn();
}
void loop()
{
if(irrecv.decode(&results))
{
decode=results.value;
Serial.println(decode);
switch(decode)
{
case -10201: moveforward(); break;
case -4081 : movebackward(); break;
case 12495 : moveleft(); break;
case 28815 : moveright(); break;
case -20401: stop();
}
delay(500);
irrecv.resume();
}
}
void moveforward()
{
digitalWrite(leftforward,HIGH);
digitalWrite(rightforward,HIGH);
digitalWrite(leftbackward,LOW);
digitalWrite(rightbackward,LOW);
}
void movebackward()
{
digitalWrite(leftforward,LOW);
digitalWrite(rightforward,LOW);
digitalWrite(leftbackward,HIGH);
digitalWrite(rightbackward,HIGH);
}
void moveleft()
{
digitalWrite(leftforward,LOW);
digitalWrite(rightforward,HIGH);
digitalWrite(leftbackward,LOW);
digitalWrite(rightbackward,LOW);
}
void moveright()
{
digitalWrite(leftforward,HIGH);
digitalWrite(rightforward,LOW);
digitalWrite(leftbackward,LOW);
digitalWrite(rightbackward,LOW);
}
void stopnow()
{
digitalWrite(leftforward,LOW);
digitalWrite(rightforward,LOW);
digitalWrite(leftbackward,LOW);
digitalWrite(rightbackward,LOW);
}
From here u can download IRremote library files.
Conclusion
)
Here by I hav completed RC car project from scratch using LAB.
LAB : L293D MOTOR DRIVER + ATMEGA328P + BREADBOARD