4 channel infrared remote relays

  • Rajkumar Sharma
  • 78454
    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

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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

amin1995

what is size of pcb LAYOUT unit?

yasir

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

ANIL

WHER TO CONNECT SW6 CIRCUIT SIR PLEASE TELL ME

savan

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

kirt

can I use universal IR remote to operate this circuit

Aakash

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

sureshkumar

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

ramy

its range ?

rohan

i dont hav 455khz crystal can i use 4Mhz

rohan

can we use ir blaster app of mobile as transmitter

Subhash Mahla

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

mohamed

THANK YOU
HT12E WORK ? I DONT FOUND HT12A ?

Alfraiz Sk

please show me your circuit diagram…

Nivin

How to increase the output voltage.pls tell me sir

AJAY

CAN I USE 5V RELAY

Onur AKARSU

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

uchee

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

gowtham

How to check ic ht12a working or not.

Pratheek

the BC557 transistor is PNP transistor or NPN transistor

rohit

can i use any alternative ic insted of HT12A?

LOVE U GIRL

What is the price ?

Manmohan

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

catspirited

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 ?

Manish Kumar Singh

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

Manish Kumar Singh

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

Sujay

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

Mostafa

Hi
Can i replace HT12A and HT12D with PT2276 and PT2272?

ankit

Hi please tell me can I use any universal tv remote instead off transmitter board which is designed by you.

Paul

Hello, I see this is what i need for my project. Any help tracking down (sites supplying pcb/parts) all the parts and pcb for the units would be appreciated..

Aatif Shaikh

Can I use 500 khz oscillator in alternative of 445 khz

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