This document discusses a home automation project that uses an IR remote to control appliances via an Arduino board. The Arduino receives IR signals from the remote using a TSOP1738 IR sensor. It decodes the signals and sends corresponding signals to relays connected to appliances like lights and fans to switch them on or off. When a button on the remote is pressed, it sends a coded IR signal that is received and decoded by the Arduino. The Arduino then performs the associated operation, like turning a light on or off, and displays the status on an LCD screen. The goal is to allow wireless control of home appliances using an IR remote and Arduino.

1. H O M E
A U T O M A T I O N
U S I N G
I R R E M O T E

2. I N T R O D U C T I O N

3. In this project, we are using IR based wireless
communication for controlling home appliances. In this
project,
Arduino is used for controlling the whole process. We
send some commands to the controlling system by
using IR remote for controlling AC home appliances.
After receiving signal from IR remote, Arduino sends
related signal to relays which are responsible for
switching ON or OFF of the home appliances through a
relay driver.

4. AUTHOR
Christopher Langman
PUBLISHED BY
The Glowbook Publishing
ARDUINO UNO
TSOP1738
IR REMOTE
ULN 2003
RELAY 5V
BREAD BOARD
16X2 LED DISPLAY
IC 7805
POWER SUPPLY
C O M P O N E N T S

5. 0 7 / 1 0U N T I L D A W N
W O R K I N G P R I N C I P L E
When we press any button of IR Remote then remote sends a
code in form of train of encoded pulses using 38Khz
modulating frequency.
These pulses are received by TSOP1738 sensor and read by
Arduino and then Arduino decodes received train of pulse
into a hex value and compares that decoded value with the
predefined hex value of the pressed button.
WORKING PRINCIPLE

6. If any match occurs then Arduino perform relative
operation and the corresponding result is also displayed
on 16x2 LCD by using appropriate commands.
Here in this project we use 3 bulbs of different colors,
for demonstration which indicates Fan, Light and TV.

7. OBJECTIVE

8. T H A N K Y O U
ROHITH KILKILE (1RV16EC134)
RITWIK CHAKRABORTI (1RV16EC130)