Learn By Watch Exit Reader Mode

Basic Remote Tester

Test your remote control of TV, DVD, VCD etc with this circuit. There is an infra-red sensor TSOP4838. When this sensor gets infrared signal, the voltage at its VO pin drops and that triggers the BC557 transistor. At each trigger signal, BC557 glows the LED. Thus, you can see the response of your remote control signal.


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Required Material to make it yourself