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Controlling Lights & Fans with TV remote

Controlling Lights & Fans with TV remote. BY :- PATHEPARAPU VIVEK(ES12B1013 ) GOPI ANDE (CS12B1015). Need for such type of set up. Now a days many(old people, physically disabled….) are facing problem to directly go and switch on the lights and fans in their home.

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Controlling Lights & Fans with TV remote

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  1. Controlling Lights & Fans with TV remote BY :- PATHEPARAPU VIVEK(ES12B1013) GOPI ANDE(CS12B1015)

  2. Need for such type of set up • Now a days many(old people, physically disabled….) are facing problem to directly go and switch on the lights and fans in their home. • So there is a need for such type of remote controllable circuit. Check out the circuit!!!!!!

  3. CIRCUIT

  4. Circuit description • The circuit can be activated from upto 10 meters with a remote. • The 38kHz infrared (IR) rays generated by the remote control are received by IR receiver module (TSOP1738) of the circuit. • Pin1 of IR receiver is connected to ground, pin 2 is connected to the power supply through 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 decade counter IC CD4017 (IC1). Pin 8 of IC1 is grounded, pin 16 is connected to Vcc and pin 3 is connected to LED1 ,which glows to indicate that the appliance is ‘off.’

  5. Circuit description • The output of IC1 is taken from its pin 2. LED2 connected to pin 2 is used to indicate the ‘on’ state of the appliance. • Transistor T2 (BC548) connected to pin 2 of IC1 drives relay RL1. Diode 1N4007 (D1) acts as a freewheeling diode. • The appliance to be controlled is connected between the pole of the relay and neutral terminal of mains. • It gets connected to live terminal of AC mains via normally opened (N/O) contact when the relay energizes.

  6. Advantages:- • Home appliances like lights and fans can be switched on/off with the help of remote directly. • No need for the special remotes. They can be controlled with the ordinary TV remotes. • Reduces the work. • Very much helpful to the patients and old people. • Cheaper. • It is safer than directly switch on/off with the hand.

  7. THANK YOU

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