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Circuit Diagram of Remote Control Tester

Here is an infrared remote control tester circuit that can be made without spenting much money.This IR tester build around an infrared reciever module TSOP1738. We can observe the remote control state by listening to the buzzer sound. The circuit is very sensitive and it support a range of about 5 meters.

The infrared receiver module normally remains high and the piezo buzzer is in silent mode. When the IR module receives a signal from the remote control,Its output goes low and the piezo buzzer sounds.

Circuit Diagram of Remote Control Tester

  • Assemble the circuit on a Common PCB and enclose in a small box.
  • Make sure the IR receiver made visible outside.
  • You can directly plug the circuit into mains

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