Remote Control for Home Appliances : Tutorial 29
RF wireless communication circuit without any microcontroller? This article explains you how to control the home appliances wirelessly using RF technology.
Here we have used RF434 MHz modules to make wireless remote. Using this remote, we can control the appliances within the range of 100 meters. This project has two sections, one is transmitter section and the other is receiver section. At transmitter section, we use HT12E encoder and at receiver section, we use HT12D decoder.
RF Remote Control Circuit Principle:
When we press any key in the remote, the transmitter section generates the corresponding RF signal and this signal is received by the receiver section, hence it switches the corresponding appliance.
A four channel encoder/decoder pair is used in this system. The input signals at the transmitter section are taken from the four switches and the output signals at the receiver are indicated by the four LED’s corresponding to each switch.
Here, the encoder HT12E is used to convert parallel data to serial. This data is transmitted serially to receiver point through RF.
RF receiver receives the data serially and then gives to the HT12D decoder to convert it to the parallel. Four LEDs indicate the received data.
Видео Remote Control for Home Appliances : Tutorial 29 канала Praveen Dehari
Here we have used RF434 MHz modules to make wireless remote. Using this remote, we can control the appliances within the range of 100 meters. This project has two sections, one is transmitter section and the other is receiver section. At transmitter section, we use HT12E encoder and at receiver section, we use HT12D decoder.
RF Remote Control Circuit Principle:
When we press any key in the remote, the transmitter section generates the corresponding RF signal and this signal is received by the receiver section, hence it switches the corresponding appliance.
A four channel encoder/decoder pair is used in this system. The input signals at the transmitter section are taken from the four switches and the output signals at the receiver are indicated by the four LED’s corresponding to each switch.
Here, the encoder HT12E is used to convert parallel data to serial. This data is transmitted serially to receiver point through RF.
RF receiver receives the data serially and then gives to the HT12D decoder to convert it to the parallel. Four LEDs indicate the received data.
Видео Remote Control for Home Appliances : Tutorial 29 канала Praveen Dehari
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