Infrared Remote Control Tester Circuit
This is a simple circuit you can build in order to test infrared remote controls. The circuit uses an IR photo-transistor (IR1) to detect a remote control’s IR output signal.
|LS1||8Ω 0.5W Small Speaker|
This circuit is designed to demodulate amplitude-modulated (AM) IR light beams will drive a speaker.
LM741 is amplified the IR1 signal and LM386 is driven the speaker.
VR1 is used to control sensitivity and VR2 is used to control the volume of speaker (LS1)
The Speaker will sound when any of the Remote-Control pushbuttons will be pressed.
This circuit tests consumer electronic hand held remote controls such as those used by TVs, VCRs, DVD players and more.
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