How does the HT12E 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.
How do I create an RF module?
Step 1: Parts List
- RF transmitter and RF receiver of 433 Mhz.
- 3 push buttons.
- IC HT12D.
- IC HT12E.
- Hearders (male or female it doesn’t care)
- 3 resistors with a value from (100 to 330) ohms.
- 3 leds any color 3mm of diameter (miniature)
- 1 Megaohm resistor for IC of the transmitter (IMPORTANT)
What is IC HT12E?
HT12E is a 212 series encoder IC (Integrated Circuit) for remote control applications. It is commonly used for radio frequency (RF) applications. HT12E simply converts 12 bit parallel data in to serial output which can be transmitted through a RF transmitter.
How does RF transmitter and receiver 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.
How does IC encoder work?
An Encoder IC generally consists of an Enable pin which is usually set high to indicate the working. It consists of 2^n input lines and n output lines with each input line being represented by a code of zeros and ones which are reflected at the output lines.
Is Wi-Fi 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).
What devices use RF?
Key sources of RF fields include mobile phones, cordless phones, local wireless networks and radio transmission towers. They are also used by medical scanners, radar systems and microwave ovens.
How is ht12e used in remote control systems?
5 Datasheet HT12E is a 2 12 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.
How is the ht12e decoder used in RF?
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.
How many pins are in an IC ht12e?
HT12E is a 212 series encoder most commonly used in remote control applications. It contains totally 12 input pins in which 4 pins are used for data/address bits (AD8-AD11) and 8 pins for address bits (A0-A7) for safe transmission of data for security purposes.
Why is the address limited on the ht12e?
The HT12E uses the address to transmit with the transmitted data. This address can only be from 256 combinations of 8-bits. This makes the device limited. In most of the cases, the generated signal has a theft issue. Because the signal is broadcasted and unable to trace the receive.
