RF TechnologyPRESENTED BY :- ABHISHEK KR. GUPTAINTRODUCTIONThis project is designed to give the vehicle arrival information to the control room (public transport stand) as well as the passengers. This project uses the RF technology to transmit and receive the information. This system is developed for buses, trams, taxies and other public transportation vehicles.

Project Description

Each vehicle has assigned a unique identification number. When the vehicle comes in the proximity of the stand it transmits it unique id number through the RF-transmitter which is received by the RF-Receiver. The received signal is decoded by HT12D and fed to microcontroller AT89S8253 and vehicle arrival is displayed on LCD..

Encoder (HT12E)Features Operating voltage 2.4V~12V Low power and high noise immunity CMOS technology Low current standay: 0.1A (typ.) at VDD=5VHT12E

Decoder (HT12D)

HT12D

Transmitter

Receiver

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