How do HT12E Encoder and HT12D work ?

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How do HT12E Encoder and HT12D work ?

Рет қаралды 22,784

5 ай бұрын

In this video, I will provide a comprehensive tutorial about the HT12E and HT12D ICs and how they work. I will also practically demonstrate their use in a common application.
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🔰 What is HT12E and HT12D ?
The HT12E and HT12D are a pair of complementary integrated circuits designed for use in remote control systems. The HT12E is an encoder IC, which encodes a set of input signals into a serial signal for transmission. It takes up to 12 bits of parallel input data and converts them into a serial output. This serial output is then typically transmitted wirelessly via radio frequency (RF) or infrared (IR) signals.
On the receiving end, the HT12D is a decoder IC that reverses the process. It receives the serial signal (after it has been demodulated from the RF or IR carrier) and converts it back into the original 12 bits of parallel data. These ICs are used in various applications, including wireless doorbells, car alarms, and other remote control systems where a certain number of digital signals need to be transmitted wirelessly from a sender to a receiver.
Thank for watching....!
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Пікірлер: 43

@charlesspringer4709 5 ай бұрын

Awesome AI read of a data sheet

@fareswissam8205 3 ай бұрын

The lesson explanation is very wonderful

@PHYTION1 2 ай бұрын

Thank you! 😃

@olivierconet7995 5 ай бұрын

Interesting, thanks. We all done this mistake 😁: GND wire missing in the demo (those circuits use a CMOS logic level, not RF)

@davepompea 5 ай бұрын

I believe it is there. It's a bare wire so it's hard to see.

@srenkoch6127 5 ай бұрын

@@davepompea Alternatively, if the transmit frequency is high enough, the capacitance of the transmit and receiver boards may be high enough to act as ground through the table :-).

@tookitogo 5 ай бұрын

⁠@@davepompeaThere is no bare wire between the two breadboards. Just the yellow insulated signal wire.

@shaunclarke94 5 ай бұрын

I was curious about this also. I'm guessing it works as it's designed for RF?

@davepompea 5 ай бұрын

@@tookitogo Oh, right. I wasn't thinking about *that* wire. D'uh!

@jozefnovak7750 5 ай бұрын

Super! Thank you very much!

@PHYTION1 5 ай бұрын

Thank you too!

@geooogle 5 ай бұрын

Thanks do more please. I can read just fine but you're awesome when I don't want to read

@PHYTION1 5 ай бұрын

sure, It's my pleasure

@boonedockjourneyman7979 4 ай бұрын

Thank you.

@PHYTION1 4 ай бұрын

Welcome!

@0x9D99 5 ай бұрын

More of this pls. And the actuator.

@PHYTION1 5 ай бұрын

sure

@jimknopf705 5 ай бұрын

Thanks.

@PHYTION1 5 ай бұрын

You're welcome

@anandazhagappan964 2 ай бұрын

Great video! How do you determine the resistor value sir?

@LarsPW 5 ай бұрын

In your experiment you provided both sides of the transmissiom with electricity from different batteries, but I did not see the common ground conection. To get over longer distances it is better to have a differential transmission giving the same signal positive and negative (symmetrically).

@PHYTION1 5 ай бұрын

yes. It is a mistake I have made.

@boblewis5558 5 ай бұрын

In which case you'd need, 433MHz tx & rx or use a bus specifically for differential drive like RS485 or even use CANbus

@LarsPW 5 ай бұрын

@@boblewis5558 ... in any case you need to spare wiring without wanting to employ wireless transmissions, e.g. in a machinery transmitting controlling signals onto moving parts.

@boblewis5558 5 ай бұрын

@@LarsPWTrue! But then you lose a huge element of physical security for the low extra cost of some cable. I avoid wireless connections, including WiFi, as much as possible as they are SO easy to hack, even for rank amateurs! 😢

@LarsPW 5 ай бұрын

@@boblewis5558 I share your opinion on wireless connections within machinery. But sometimes trunks of wires are not applicable for mechanical reasons and/or to avoid crosstalk problems. Therefor are these and some other chipsets made. Years ago I heard about cascadable ICs to make 8-, 16-, 24- or 32-bit wide serial transmissions possible. But I think that the HT12x are rather intended for wireless transmissions, otherwise they would have integrated differential outputs.