4 channel infrared remote relays

  • Rajkumar Sharma
  • 62077
    Views
  • medium
  • 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

HT12A/HT12E Datasheet

HT12A-HT12E

Video

PCB

Comments

  • S.K.Chatterjee

    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

    4 years ago
    • Electronics Lab

      Circuit is tested and working as it should be. You can try it for your self.

      4 years ago
      • amin1995

        what is size of pcb LAYOUT unit?

        3 years ago
        • Electronics Lab

          The transmitter PCB size is 46.36 x 59.69mm and receiver size is 86.36 x 83.19mm

          3 years ago
  • yasir

    Any alternative of IC’s i do not have and not in my region.

    4 years ago
    • Electronics Lab

      Have you checked on ebay.com?

      4 years ago
  • ANIL

    WHER TO CONNECT SW6 CIRCUIT SIR PLEASE TELL ME

    4 years ago
  • savan

    i want to buy complet project 4 ir led using encorder decoder

    4 years ago
  • kirt

    can I use universal IR remote to operate this circuit

    4 years ago
  • Aakash

    But these ICs are used for 433mhz transmitter and receiver, So will it work in IR also?????

    3 years ago
  • Electronics Lab

    They work for both RF and infrared transmissions.

    3 years ago
  • sureshkumar

    i donT have HT12A IC SO CAN I USE HT12E IC ITS WORKING ORE NOT

    3 years ago
    • Electronics Lab

      I think it will not work as HT12E has slightly different characteristics.

      3 years ago
  • ramy

    its range ?

    3 years ago
    • Electronics Lab

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

      3 years ago
  • rohan

    i dont hav 455khz crystal can i use 4Mhz

    3 years ago
    • Electronics Lab

      It is necessary to use a 455Khz crystal for the internal oscillator to work.

      3 years ago
  • rohan

    can we use ir blaster app of mobile as transmitter

    3 years ago
  • Subhash Mahla

    can you tell me alternate of HT12A IC because it is not available

    3 years ago
    • admin

      I don’t know any alternative for this IC but you can find it online on many shops.

      3 years ago
  • mohamed

    THANK YOU
    HT12E WORK ? I DONT FOUND HT12A ?

    3 years ago
    • Alfraiz Sk

      please show me your circuit diagram…

      2 years ago
      • admin

        Circuit diagram is published above.

        2 years ago
  • Nivin

    How to increase the output voltage.pls tell me sir

    2 years ago
    • admin

      Which output voltage do you mean? With the output relays you can control many types of loads.

      2 years ago
  • AJAY

    CAN I USE 5V RELAY

    2 years ago
    • admin

      You can use 5V relay.

      2 years ago
  • admin

    Project updated to version 2

    2 years ago
    • Onur AKARSU

      is the version 2 this project? Or is there link for version 2?

      2 years ago
      • admin

        The above is the version 2. Thanks

        2 years ago
  • uchee

    can use it for drone with dc motor? i want to make with 18650 battery. can you help me how? thx 🙂

    2 years ago
    • admin

      This project is used to control a load by turning it on or off but a drone needs motor speed control.

      2 years ago
  • gowtham

    How to check ic ht12a working or not.

    2 years ago
    • admin

      Check on pin 17 if signal is present when you press a button.

      2 years ago
  • the BC557 transistor is PNP transistor or NPN transistor

    2 years ago
  • rohit

    can i use any alternative ic insted of HT12A?

    1 year ago
    • admin

      You can check if HT12E + HT12D will work on this project. The datasheet will help you.

      1 year ago
  • What is the price ?

    1 year ago
    • admin

      Unfortunately we don’t sell kits or assembled boards, but we can produce and ship the board if order quantity is >25 pieces

      1 year ago
  • Manmohan

    Can I hold ON position in all four channel at a time ???

    10 months ago
    • No, this is not possible with this project. If you press all switches at the same time, all outputs will go high, but then if you press any of the switches then all goes off.

      10 months ago
  • I’m trying out the circuit using an ht12e instead of a ht12a , so I introduced a timer after to generate the 38khz necaessary for the tsop1738 . However there seems to be a problem with the transmission . The tsop1738 could not detect it . I wired up the data pins directly to check the working and it work Ed , but it was without ir . Could I have some help ?

    8 months ago
    • The HT12E works somewhat different than the HT12A. It doesn’t have a 38khz carrier and it will trigger on different pin. The A is recommended for infrared usage.

      7 months ago
    • Manish Kumar Singh

      Sir is there any coding required for same circuit or not.

      7 months ago
      • What do you mean? Please explain.

        7 months ago
        • Manish Kumar Singh

          Sir i want to know. Any programming requires to burn into the ic’s of this project

          7 months ago
          • No, the ICs on this project are not microcontrollers and do not require programming.

            7 months ago
  • Sujay

    Where from You build the PCBs? Can you share me contacts?

    5 months ago
    • The boards was manufactured locally.

      5 months ago

Leave a Reply to ramy Cancel reply

RELATED PROJECTS

By continuing to use the site, you agree to the use of cookies. more info

The cookie settings on this website are set to "allow cookies" to give you the best browsing experience possible. If you continue to use this website without changing your cookie settings or you click "Accept" below then you are consenting to this.

Close