This document summarizes an EE-323 semester project on a home automation system. It includes sections that describe the project plan involving fan speed control using temperature sensors, indoor light control using IR sensors, outdoor light dimming using LDR sensors, and automatic and manual control modules. It provides schematics, flow charts, code explanations, and simulations for each module. The document aims to provide details on implementing a home automation system by concatenating different control modules together using a microcontroller.
3. “
”
Heights that great men reached and kept
Were not attained in sudden flight
They while their companions slept
Were toiling upwards in the night
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4. FAN RPM CONTROL
THROUGH
TEMPERATURE
SENSORS
INDOOR LIGHT
CONTROL USING IR
SENSORS
OUTDOOR LIGHT
DIMMING USING
LDRs
AUTOMATIC CONTROL
MODULES
MANUAL OVERWRITE
CONTROL
C
O
N
C
A
T
I
N
A
T
I
O
N
BASIC PLAN
5. F A N R P M C O N T R O L
T H R O U G H
T E M P E R A T U R E
S E N S O R S
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39. CODE EXPLAINATION
Flag bit= high
Manual
Mode
Disable
interrupts
Flag bit= low Auto Mode
Enable
interrupts
EXTERNAL 0 - MODE SWITCHING
A bit is initialized with the value 0 (auto
mode), every time the interrupt EXT_0
occurs, the value of the bit is toggled.
40. C O N C A T I N A T I O
N O F T H E
M O D U L E S
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