HT12E is a series encoder IC (Integrated Circuit) for remote control applications. It is commonly used for radio frequency (RF) applications. By using the. HT12E Encoder IC can be used only with its pair HT12D. These two ICs together form an Encoder and Decoder pair. The HT12E Encoder IC starts working by giving enable signal to the Transmission Enable pin. The 4-word data will be encoded until the TE pin.

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SPI H1t2e of Arduino. What is Web Browser. The above diagram shows the practical set up of the HT12E encoder IC for better understanding on the working.

If the TE pin retains the low signal the cycle repeats as long as the low signal in the TE pin exists. The encoder and decoder should ut12e the same address and data format. I have 5v 12d cut and 12v 12e ckt. This data should be sent to the HT12D for decoding, it can either be sent directly through a wire or by using a wireless medium like RF or IR. Request you idea on this. ULN was a transistor array IC used for driving high power devices.

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Regarding the addressing you can use a simple switch to feed your desired address. Submitted nt12e admin on 30 October So you can connect your Arduino with it and work.


Working of HT12E Encoder IC – Gadgetronicx

Virgin Galactic — Commercial Space Flight. The encoded bit can be obtained from the Dout pin pin These four pins are used to send data, the data encoded here will be decoded on HT12D IC sharing the same address bits.

Pull the Transmission Enable pin pin 14 to ground to activate transmission. We should set the bits in same pattern on Encoder and Decoder IC to pair them. The query I raised about is dynamic addressing i. Can be used in Home automation for short range remote switching Safety systems like Burglar alarm system, Smoke or Fire alarm system etc.

But if i want to transmit data in 5th encoder, in which pin of encoder sholud i provide data to encoder??? Using the address pins we can provide 8 bit security code for secured data transmission between the encoder and the decoder. This oscillator can be used by connecting these two pins through a 1M Resistor. A basic connection diagram for the HT12E IC is shown below In the above circuit I have set the 8-bit address data as 0b, by connecting all address pins to ground.

HT12E Encoder IC

The 4-bit data that has to be sent has to be given to the pins AD0 to AD1 and an address of 8-bit has to be set using the pins A0 to A7.


Dear Frank Kc you for your reply.

HT12E begins a 4-word transmission cycle upon receipt of a transmission enable. These two ICs together form an Encoder and Decoder pair.

Uc are paired with 2 12 series of decoders for use in remote control system applications. No mechanical switching involved. Notify of all new follow-up comments Notify of new replies to all my comments. Hope it is clear now. The Encoded 12 bit output data can be obtained from this pin.

HT12E is capable of operating in a wide Voltage range from 2. It is very important that your Decoder should also have ht112e same address for them to talk to each other.

If you need more address I suggest you to look for any other encoders and decoders with more address combinations. SSS, As per the datasheet you need that resistor to kick start the internal oscillator in the chip which in turn feeds clock pulse to data transmission. If you want security you can connect any of the 8 pins to 5V to make it high.

The IC is has a wide range of operating voltage from 2. It is mainly used in interfacing RF and infrared circuits. In ht12d decoder section, i am changing the address by giving delay.