What is the use of HT12E?
HT12E is a 212 series encoder IC (Integrated Circuit) for remote control applications. It is commonly used for radio frequency (RF) applications. By using the paired HT12E encoder and HT12D decoder we can easily transmit and receive 12 bits of parallel data serially.
What is HT12D decoder?
The HT12D is a 2^12 decoder in 18 pin DIP package. This decoder is a series of CMOS LSIs for remote control system applications. It is paired with Holtek’s 2^12 encoder. For proper operation, a pair of encoder/decoder with same number of addresses and data format should be chosen.
What is HT12A?
The 212 encoders are a series of CMOS LSIs for remote control system applications. They are capable of encod- ing information which consists of N address bits and 12-N data bits. The HT12A additionally provides a 38kHz carrier for infrared systems.
How do you test HT12E and HT12D?
The testing of IC HT12D will be measured by giving the input data to the pin AD12 and AD13 on the IC HT12E. Then, the addressing bits in the HT12D will be reviewed by using an oscilloscope.
How do RF transmitters and receivers work?
The RF transmitter receives serial data and transmits it wirelessly through through its RF antenna. The transmission occurs at the rate of 1 Kbps – 10 Kbps. RF receiver receives the transmitted data and it is operating at the same frequency as that of the transmitter.
What is encoder and decoder?
Encoder circuit basically converts the applied information signal into a coded digital bit stream. Decoder performs reverse operation and recovers the original information signal from the coded bits. 2. In case of encoder, the applied signal is the active signal input. Decoder accepts coded binary data as its input.
How does HT12D work?
HT12D simply converts serial data to its input (may be received through RF receiver) to 12 bit parallel data. These 12 bit parallel data is divided in to 8 address bits and 4 data bits.
How does HT12E encoder work?
Simply put, HT12E converts the parallel inputs into serial output. It encodes the 12 bit parallel data into serial for transmission through an RF transmitter. These 12 bits are divided into 8 address bits and 4 data bits. HT12E begins a 4-word transmission cycle upon receipt of a transmission enable.
What is encoder and decoder in digital electronics?
Is WiFi an RF signal?
Wi-Fi is an essential part of many of our lives. Very basically, Wi-Fi is made up of stations that transmit and receive data. Wireless transmissions are made up of radio frequency signals, or RF signals, which travel using a variety of movement behaviors (also called propagation behaviors).