Password Protected IR Based Device Control

Abstract

This project is developed for the users to control the operation of a multiple devices in wireless manner. It consists of a four channel RF transmitter, four channel RF receiver, Microcontroller etc. This project uses a 4 channel RF transmitter in one side (Hand set) and a 4 channel RF receiver with microcontroller circuit in other side. The hand set consists of four buttons for four devices. When the user presses a specific button in the hand set, the transmitter sends corresponding RF signal and the RF receiver receives the signal and sends to the microcontroller. The microcontroller controls the relay through driver section to switch on the particular device. The same way, the user can operate all the devices. The microcontroller used is PIC 16F73. The microcontroller program is written in assembly language.

Existing System

Proposed System

Architecture

BLOCK DIAGRAM