How do HT12E Encoder and HT12D work ?

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PHYTION

Күн бұрын

Пікірлер: 43

@charlesspringer4709 7 ай бұрын

Awesome AI read of a data sheet

@olivierconet7995 8 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 8 ай бұрын

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

@srenkoch6127 8 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 8 ай бұрын

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

@shaunclarke94 8 ай бұрын

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

@davepompea 8 ай бұрын

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

@jozefnovak7750 8 ай бұрын

Super! Thank you very much!

@PHYTION1 8 ай бұрын

Thank you too!

@santhanamsan316 4 ай бұрын

what software you where using

@fareswissam8205 5 ай бұрын

The lesson explanation is very wonderful

@PHYTION1 5 ай бұрын

Thank you! 😃

@geooogle 8 ай бұрын

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

@PHYTION1 8 ай бұрын

sure, It's my pleasure

@anandazhagappan964 5 ай бұрын

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

@boonedockjourneyman7979 7 ай бұрын

Thank you.

@PHYTION1 7 ай бұрын

Welcome!

@Rohan4IN 6 ай бұрын

Will it work if I use two sets of encoder and decoder with different address for each pair and send the data through one wire?

@PHYTION1 5 ай бұрын

Yes it will

@anandazhagappan964 5 ай бұрын

HT 12E encodes 4 bit data value.Is there any CMOS IC for 2 bit data?

@LarsPW 8 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 8 ай бұрын

yes. It is a mistake I have made.

@boblewis5558 8 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 8 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 8 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 8 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.