ABSTRACT
In this competitive world human cannot spare his time to perform his
daily activities manually without any fail. The most important thing he
forgets is to switch off the room lights wherever not required. With
this, even the power will be wasted up to some extent. This project
gives the best solution for electrical power wastage. Also the manual
operation is completely eliminated. The home appliances can be switched
on/off using Zeegbee without actually going near the switch boards or
regulators.
The
loads like lights, motors, heaters, power controlling system and also
current through the loads can be controlled in this project. We can
control all loads at a time from one place (control room) without
connecting any physical wire between loads and control room.
Switches
through Zeegbee acts as the transmitter in this project. When a switch
is pressed in the remote, the signal will be passed and received by
the Zeegbee receiver. This signal is sent to the microcontroller which
decodes the signal and performs the corresponding action in accordance
with the button pressed in the remote. For example, if number 1 is
pressed in the remote, the load 1 will be switched on/off according to
the user requirement. The other tasks will be performed in the similar
fashion using Switches and Zeegbee.
This
project uses regulated 5V, 500mA power supply. 7805 three terminal
voltage regulator is used for voltage regulation. Bridge type full wave
rectifier is used to rectify the ac out put of secondary of 230/12V step
down transformer.
SOFTWARE AND HARDWARE TOOLS:
Software Tools:
- Kiel compiler
- Proload
Hardware Tools:
- Microcontroller AT89S52.
- LCD
- MAX232
- ZIGBEE
- Buzzer
- LOADS
- SWITCHES
- ADC
- SENSORS(TEMPERATURE,LDR)
BLOCK DIAGRAM:
TRANSMITTER SIDE:
RECIEVER SIDE:
