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I used circuit wizard 2. You can build this circuit on there in no time.
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this is my As electronics, i haven't quite understood the basics much. The photo diode is there within the circuit to act as a sensor. in real life, i am using an infra-red transmitter and reciever...
Hi. I am trying to build a laser security system. When the sensor and the transmitter are in range and connected, the buzzer and led are off. But when the connection is cut betweens the sensors, the led and buzzer turns on. When the connection is made again between the sensor and the...
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