Contents
What is the function of the IC ht12e?
The unique function of HT12E is to convert 12 bit parallel data inputs into serial data output (pin17) and then it is modulated and transmitted using the RF transmitter module. The power consumption is very low and the standby current is 0.1µA at5V. HT12E has a transmission enable pin which is active low.
Which is the best decoder for ht12e decoder?
HT12E doesn’t work alone. It’s only an encoder and one side of communicator. On the contrary, the second part of the communicator uses an HT12D decoder. In short, HT12D is the most suitable decoder for HT12E because both are 12-bits and have the same number of address and data pins.
How is the ht12e used in Arduino circuit?
In addition to the above example circuit, You can also see this example on IR transmitter and receiver interfacing with Arduino. The HT12E uses the address to transmit with the transmitted data. This address can only be from 256 combinations of 8-bits.
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.
What is the standby voltage of ht12e?
HT12E is able to operate in a wide voltage range from 2.4V to 12V and has a built in oscillator which requires only a small external resistor. Its power consumption is very low, standby current is 0.1μA at 5V VDD and has high immunity against noise.
Can a ht12e be used as a Te trigger?
The capability to select a TE trigger on the HT12E or a DATA trigger on the HT12A further enhances the application flexibility of the 212 se- ries of encoders. The HT12A additionally provides a 38kHz carrier for infrared systems.
How does ht12e convert 12 bit parallel data?
HT12E simply converts 12 bit parallel data in to serial output which can be transmitted through a RF transmitter. These 12 bit parallel data is divided in to 8 address bits and 4 data bits.