03-04-2012, 12:37 PM
Wireless Extender forIR Remote Controls
MINI PROJECT.pptx (Size: 369.25 KB / Downloads: 65)
INTRODUCTION & OVERVIEW
Using this system, you can control the IR-remote-controlled home appliances like DVD player and air-conditioner from another room without the hassle of running extra cables between the two rooms.
The system wirelessly sends infrared signals from one room to another.
The system is a combination of an infrared transmitter unit and a receiver unit, both housed in separate small plastic boxes.
function
The transmitter unit is kept in the room along with the remote control of the appliance to be controlled (say, a DVD player), while the receiver unit has to be kept on or nearby the DVD player in another room.
The transmitter detects the IR pulses from the remote and retransmits on the UHF band at 433 MHz.
The receiver unit (in another room) picks up the transmitted signals used by IR remote systems.
IR pulses from a pair of IR LEDs provide controlling signals to the DVD player located in the other room.
TX433-TRANSMITTER
Complete RF Transmitter Module no external components and no tuning required.
Architecture with a Maximum Range of 100 mts at 4800 bps(bytes per second) data rate.
Interface directly to Encoders and Microcontrollers with ease.
Low Power Consumption suitable for battery operated devices
APPLICATIONS
In Industries, where a large number or a group of electrical appliances are to be controlled ,this device is much useful.
In every home we use many electrical appliances switched on and off manually.
Automotive remote entry systems.
Gate and garage door openers.