Electronics-DIY - Electronic Schematics Remote Control This IR remote control that you can use to control other devices or circuits up to 8 devices. The control codes are sent in RC5 format modulated to about 38 kHz carrier frequency IR transmitter powered by the CR2016 which is a 3V button Cells Battery CR2016 extend the life of the battery this is done by putting the CPU into SLEEP mode for most of the time and wake-up only when a key is Remote Controlled Switch Circuit Diagram In this remote controlled switch circuit we are using TV remote to ON/OFF the AC light by pressing any button of remote, and using the TSOP1738 at receiver end. Receiver circuit is connected to AC appliance via Relay, so that we can control the light remotely. We have used IC 4017 to convert it into a push ON, push OFF switch. Easy Home Remote Control Schematic Circuit Diagram If your remote control is not compatible with RC5 codes, you can buy a cheap universal remote control to do the job. To avoid the relays changing state owing to a power cut in your home, the state of the relays is saved in the microcontroller EEPROM and retrieved every time the PIC re-initialises. RF remote control circuit Share on Tumblr RF remote control circuit designed with 434 MHz ASK (Amplitude shift keying) transmitter and receiver, Here IC HT12E act as encoder and IC HT12D act as decoder, this circuit is constructed with easy available components. This remote gives approximately 150 meter coverage by extending the ariel wire it can be increased up to 200 meters.