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 transmitter, the buzzer turns off and the led stays on, which is switched off by a reset switch. This project seems to work perfectly fine in circuit, but when I simulate it in reality, the circuit doesn't work. Can you help me out please.
What simulation software are you using? zip and post your simulation file so that it can be tested. Do you have laser led in the simulator? If yes, place it near the photo-transistor and see if it works.
What simulation software are you using? zip and post your simulation file so that it can be tested. Do you have laser led in the simulator? If yes, place it near the photo-transistor and see if it works.
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. the photodiode is there to adjust the lux meaning that in real life, it will act as an object blocking the sensors.
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. the photodiode is there to adjust the lux meaning that in real life, it will act as an object blocking the sensors.