A simple InfraRed(IR) receiver circuit using TSOP1738 IC. Also known as remote tester, this circuit can turn on LED whenever any button on the remote control is pressed. The heart of this circuit is TSOP1738 which demodulates the signals received from the remote control and gives output in the form of active low. Watch the video above for detailed step by step instructions on how to build this circuit on a breadboard.

Some applications of this project are:

Light up an LED strip near a TV in a way that whenever you press a button on the remote control the LED lights glow. You can do this by using a mosfet at the output of TSOP1738
Controlling devices through signals from remote. You need to add a flip-flop at the TSOP1738's output


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