KitsGuru Simple Sensitive Remote Tester USING T-SOP LGKT010 Educational Electronic Hobby Kit

In the kit Simple Sensitive Remote Tester USING T-SOP handy gadget for testing of infrared (IR) based remote control transmitters used for TVs and VCRs etc. The IR signals from a remote control transmitter are sensed by the IR sensor module in the tester. This in turn switches the led. In this idea we can simply test our remote easily. In the kit Simple Sensitive Remote Tester USING T-SOP 38 kHz infrared (IR) rays generated by the remote control are received by IR receiver module TSOP1738 of the circuit. The IR Sensor tester is powered by two 3 volts lithium cells. The sensor module is tested using the Test socket. Alternately you can use 3 mini alligator clips for on board testing. When the switch S1 is turned on, LED and buzzer remains off, if the IR sensor is good. When the remote handset is focused on to the sensor, and any of the buttons is pressed, LED blinks in sympathy with the pulsed IR rays and buzzer beeps. This indicates that the sensor is good. A good sensor will give high output when it is not receiving IR rays. This high output makes the cathode of LED and the negative of buzzer high and they remain off. When the output of the sensor turns low by receiving the IR rays, LED and buzzer turns on.