HT12E AND HT12D PDFJuly 10, 2020
The HT12E Encoder ICs are series of CMOS LSIs for Remote Control system applications. They are capable of Encoding 12 bit of information which consists of 8. Robokits India HT12E & HT12D Encoder and Decoder IC for RF Modules [RKI- ] – The HT 12E Encoder ICs are series of CMOS LSIs for Remote Control. This project has been design around HT12E and HT12D encoder / decoder chips from Holtek. With jumper selectable address on the receiver.
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HT12E & HT12D Encoder and Decoder IC for RF Modules
Note there is a gap on both sides down the middle for the Blue and Red outer rails. Best practice of using the breadboard is to use short solid wire leads and neatly connect flush to the board without large inductive loops.
Keep IC’s close toegether and imagine that it is a printed circtuit board layout. Add decoupling caps close to the IC.
Avoid long jumper wires at all costs. For fun here is a free tool to help design, layout and simulate.
HT12E Encoder IC
I’ve never tried this before but looks ok. Use staples for power and ground rails. Don’t use wire with thick insulation. Try to get thin solid wire 24 AWG I believe.
Thanks for all your awnser, after studying a little bit into the RF module I found out my problem, the left side of both encoder and decoder are the Address PIN, which means they will only communicate if those addresses are the same, that was what I was making wrong, I left them all at 1 and changed the resistors in them both cause the TX need to have 20 times the resistence of the receiver, in other words 50k and 1M resistors.
Yah but I agree.
Remember I said check power? That means you need an inexpensive multimeter to do this. All is working now, thanks to all. So, you are saying, when you grounded all the pins on the left of HT12D and 12E, it worked? I’m working on a similar circuit. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown.