Infrared Remote control how it's done
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Material's list:
(1) LED Infrared
(1) Infrared phototransistor with 2 legs
(1) Resistance 75, 1K, 100K ohms
(1) Battery Door 3Vdc
(1) Push Button
(1) Transistor 2N2222A
(1) LED
(1) Protoboard
(1) 12Vdc power supply
() Connection wires