4 Channel IR Transmitter and Receiver Module Using ht12A & HT12d

4 Channel Infrared (IR) Remote is a simple project using the popular HT12A and HT12D encoder/decoder chips from Holtek.  The project can be used in latch mode or momentary mode, mode selection possible using J1 Jumper and transmitter end. All output at the receiver end is TTL.

 

Specifications

•     Supply – Transmitter: 2.4 ~ 5 VDC, 5 V @ 20 mA & Receiver: 5 ~ 6 VDC, 5 V @ 50 mA
•     Output – 4 Latched/Momentary TTL compatible outputs
•      Crystal based oscillator for the reliability of operation
•      DIP switch 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
•      High noise immunity
•      Berg connector for interfacing of the board
•      Four mounting holes of 3.2 mm each
•      PCB dimensions – Transmitter: 61 mm x 47 mm & Receiver: 46 mm x 46 mm