4 channel infrared remote relays

Rajkumar Sharma        
41332
Project tested

Description

4 Channel Infrared (IR) Remote controller is  using  HT12A and HT12D encoder / decoder chips from Holtek.

Features

  • Supply – Transmitter : 3 to 5 VDC, 5 V @ 20 mA & Receiver : 5 VDC @ 200 mA
  • Output : 4 channel Latch or Momentary on board Jumper for selection
  • Crystal based oscillator for reliability of operation
  • Jumper selectable 8 bit address code
  • LED output to indicate reception
  • On/Off slide switch in the transmitter
  • Power-On LED indicator in the Receiver / Transmitter
  • Valid transmission indicator
  • 4 LED for Relay On/Off status
  • Four mounting holes of 3.2 mm each
  • PCB dimensions – Transmitter : 43 mm x 56 mm & Receiver : 80 mm x 73 mm

Schematic

 

 

 

Parts List

Receiver BOM

 

Transmitter BOM

Video

PCB

39 Response on “4 channel infrared remote relays

  1. Circuit seems to be good. I have not yet tried. Is it a straight forward in the final working or there may be problems?.Thanks

    1. As it is based on IR emitter and receiver, the range would be in the range of meters as a common TV remote control.

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