13-05-2011, 11:48 AM
Submitted by:
Aswani Kumar
Mohit Kumar
Praneet Garg
Sumit Kumar
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Home Automation & Security Control System
Project Goals
The goal of this project is to develop a home automation & security control system that gives the user complete control over all remotely controllable aspects of his or her home.
The automation system will have the ability to be controlled from a PC and remote .
Hardware Overview :
PIR Motion Sensor
LPG Sensor
Current sensor
RC Servo For Door Lock
16x2 LCD Display
Atmega 16 Microcontroller
4X4 Matrix Keypad
38KHz IR Receiver Module
Output Relays
PIR Motion Sensor :
It is a pyro electric sensor module which developed for human body detection.
Specifications:
Size : Rectangular
Output : Digital pulse high (3V) when triggered (motion detected) digital low when idle (no motion detected). Pulse lengths are determined by resistors and capacitors on the PCB and differ from sensor to sensor.
Sensitivity range : up to 20 feet (6 meters) 110 degrees x 70 degrees detection range
Power supply : 3.3V - 5V input voltage
Delay time 5s-18 minute
PIR Motion Sensor Cont..
Current Sensor :
Current sensor(ACS714 ) provides economical and precise solutions for AC or DC current sensing in automotive systems.
Pin Diagram :
IP+ & IP– :
Terminals for current being sensed
FILTER : Terminal for external
capacitor that sets bandwidth
VIOUT :Analog output signal
LPG Sensor :
Microcontroller :
ATmega16 is a low-power, high performance CMOS 8-bit microcontroller.
Features :
16K Bytes Programmable Flash Memory
1K Byte Internal RAM
32 x 8 General Purpose Working Registers
4.5 - 5.5V Operating Voltage
Byte-oriented Two-wire Serial Interface
Speed : 0 - 16 MHz
32 Programmable I/O Lines
Microcontroller Cont..
Pin Diagram :
Port A :
Port B :
Port C :
Port D :
4x4 Matrix Keypad :
Gas Sensor :
FEATURES :
High sensitivity to LPG, iso-butane, propane
Small sensitivity to alcohol, smoke.
Fast response
Stable and long life
Simple drive circuit
RC Servo Motor :
Circuit Diagram :
