The Project is based on the IR Sensors and A common IC of CD 4017. The circuit will works when the ir signals detected. The connected relay circuit will turn on and then the connected home appliances will be get turned on. So build Your own IR sensor remote control circuit at home with our guidance.
- Also check ARDUINO BASED REMOTE CONTROL CIRCUIT & CODE
Circuit Diagram
Working
In most of the home appliances the infrared sensors are using to make on/off the tv or VCD, DVD etc.. The 38KHz generated by the remote ir led and it has to be received through the IR recivers. TSOP 1738 the IR receiver the first pin connected to the ground.
2nd pin connected to the positive voltage side using 47R resistor and the 3rd pin is the signal output pin, which carries the output signal to the input clock pin of the CD4017 IC.
The getting signals are weak so a transistor connected with the receiver 3rd pin and the signals get boosted. The amplified signals from BC548 will be fed to the clock pin of 14th in CD4017 ic.
The output will be taken from the IC1 pin 2, and it has to be connected to the transistors base pin to drive the relay circuit. A normal 5V 10a relay is using for switching application.
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