IR remote control circuit diagram

Here the circuit of a single channel Infrared remote controller, which can be used to control home appliances and devices.

The IR remote controller consists of a receiver circuit similar to a toggle switch circuit using IC 4017 and a transmitter circuit using a 555 IC.

IR Receiver circuit

IR remote receiver circuit

The receiver circuit is similar to a toggle switch, which ON and OFF the output alternatively for each triggering. Here the circuit arranged to toggle the output for each positive triggering at the clock input of the decade counter IC. As a voltage drop obtains across the resistor R1 when the IR ray flashes on IR diode, a positive edge triggering gets at the clock input and the output toggles only for the next positive edge of the clock pulse.That is the flash should OFF and ON again. Thus the circuit can be ON and OFF for each flash of the IR light.

IR Remote circuit

ir transmitter circuit diagram, infrared remote

The IR remote consist of a one shot pulse or monostable multivibrator using a 555 IC which have a time period less than a second. An IR LED using a simple supply and a push-switch can act as an IR remote and is enough to operate the receiver circuit as the circuit toggles only for the edge triggering. But the circuit is to flash the IR LED for only a fraction of a second to avoid the false counting due to the motion of the hand or any improper passing, which may generate multiple pulses. Thus the circuit flashes only a minute interval even for a prolonged press of push switch.

Components required

Receiver

IC1 – 4017

Resistor – R1 – 560, R2 – 10k, R3 – 1K

Transistor – Q1 – BC547

Diode – D1 – 1N4007

IR receiver diode

Relay – SPST 12V, 200ohms

Remote

IC1 -NE555

Resistor – R1 – 1k, R2 – 560

Capacitor- C1 – 100uf, C2 – 33pf, C3 – 100nf

Diode

IR LED

Push Switch

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2 Responses

  1. javed says:

    Sr
    Pls help to I want control ir enable devices using galaxy j7prime mobile phone.
    Give me any idea pls……..

    • admin says:

      Simply it’s not possible. Because for remote controlling the devices have an IR blaster, but in a j7 infrared sensor for IR blaster is not included with it.

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