TV Remote control Home Appliances using Arduino(Infrared). This is a B.tech project.Hope some one may find some use.

1. REMOTE CONTROLLED HOME
APPLIANCES USING ARDUINO
Presented by:
U. J. A. Panini Sarma
P. Harikrushna
T. Sushil Roy
U. Habiba
Under the Guidance of:
Mr. PRASANTH KUMAR DAS
ASSOCIATE PROFESSOR
M. Tech (NIT Warangal)
Dept. of Electrical and
Electronics Engineering
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2. INTRODUCTION
 The Domestic Electrical loads are controlled by the TV remote using
ARDUINO microcontroller.
 This project is more useful for old people who cannot go to the
switch board and control the loads
 Using the TV remote control, electricity wastage can be reduced up
to some extent.
 Controlling the domestic loads is made easy by the TV remote.
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3. Block Diagram
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4. Working
 The TV remote generates infrared signals.
 There is an IR sensor TSOP 1738 which senses the IR signals
which are generated from the TV remote.
 Each signal constitutes start, command and stop bits.
 Command bits will vary for each button on the remote.
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5. Working (contd)
 The output of the IR receiver will be given to the Arduino
microcontroller where it is decoded.
 A relay will be connected to the Arduino microcontroller to
which loads are connected.
 Depending upon the command given load will be either turned
on or turned off.
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6. COMPONENTS :
 Arduino Microcontroller
 IR Remote
 IR Receiver
 5v Relay
 1N4007 diode
 Transistor BC547
 1K Resistors
 Lamp load
 Connecting wires
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7. Project Plan
Programming
Components
arrangement on board
Final
Output
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8. Program
Software used: ARDUINO IDE
#include <boarddefs.h>
#include <IRremote.h>
#include <IRremoteInt.h>
#include <ir_Lego_PF_BitStreamEncoder.h>
int RECV_PIN = 10;
int relay1 = 8;
int relay2 = 12;
int itsONled[] = {0,0,0,0};
#define code1 1
#define code2 2
#define code3 3
#define code4 4
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9. IRrecv irrecv(RECV_PIN);
decode_results results;
void setup()
{
Serial.begin(9600);
irrecv.enableIRIn(); // Start the receiver
pinMode(relay1, OUTPUT);
pinMode(relay2, OUTPUT);
}
void loop() {
if (irrecv.decode(&results)) {
unsigned int value = results.value;
switch(value) {
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10. case code1:
{
if(digitalRead(relay1) == LOW) {
digitalWrite(relay1, HIGH);
}
else {
digitalWrite(relay1, LOW);
}
}
break;
case code2:
{
if(digitalRead(relay2) == LOW) {
digitalWrite(relay2, HIGH);
}
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11. else {
digitalWrite(relay2, LOW);
}
}
break;
}
Serial.println(value); // you can comment this line
irrecv.resume(); // Receive the next value
}
}
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12. Output
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CLICK HERE TO WATCH THE OUTPUT

13. Advantages
 Useful for old people.
 Controlling the switching is easy
 Reduces human effort.
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14. Disadvantages and Application
 For larger loads equipment required is bulk
 For high current rated loads relay will be expensive
 Cannot be used for larger distances.
Applications:
 Residential Loads
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15. REFERENCES:
1. WWW.INSTRUCTUABLES.COM
2. WWW.ARDUINO.CC
3. WWW.WIKIPEDIA.ORG
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16. THANK YOU
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