Posted by : Dr. Keyur Patel Friday 11 December 2015


Components required: PCB, 9v Battery, Jumper Wires, PNP transistor, IR sensor (TSOP1738), LED, etc.

Circuit Diagram: Schematics of IR Remote Control Tester



Description: 
A PNP transistor A1015 will work as switch and TSOP1738 used as infrared sensor.  When the IR waves received by the infrared sensor it will make the transistor ON and the LED in the circuit will start blinking.

Note: One can also used Buzzer in place of LED

Different Circuit Diagrams:

   

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