Home appliance remote control

Home appliance remote control

Connect this circuit to any of your home appliances (lights, fans, radios, etc.) to turn them on/off using a TV, VCD, or DVD remote. The circuit can be activated within a range of up to 10 meters. The 38kHz infrared light generated by the remote control is received by the circuit's infrared receiver module, TSOP1738. Pin 1 of the TSOP1738 is connected to ground, pin 2 is connected to the power supply via resistor R5, and the output is taken from pin 3. The output signal is amplified by transistor T1 (BC558). The amplified signal is fed to clock pin 14 of the decimal counter IC CD4017 (IC1). Pin 8 of IC1 is grounded, pin 16 is connected to Vcc, and pin 3 is connected to LED1 (red). When LED1 illuminates, it indicates that the appliance is in the "off" state.