An arduino that runs a simple sketch can become a laser security system. The hardware is pretty easy.
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An arduino that runs a code that tells if someone trespassed your property...
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Use the breadboard (or protoshield) to connect one leg of the photoresistor to Analog Input 0, and the other leg to +5v. Then, take the 10K resistor and connect one leg to GND (ground) and the other to Analog Input 0. Also, I wired an LED to Digital I/O pin 13 to show when the laser beam is broken. Hook the negative end of the LED to ground as well.
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You must have hooked up something wrong. Try using a protoshield if you don’t have one. If something is still wrong, try switching things untill it works.
I had now re-uploaded photos that were high quality. I hope it is better! P.S. Satisfied now?
I had put new pics in on March 28th, 2012. :)
I think it would be possible, you’d just have to figure it out.
P.S. It’s arduino.
i will add an arduino 16 digit keypad to my system and make it send emails to me to make this system even better.
what code do i add if i t the LED/buzzer/alarm to stay on for a specified amount of time when the beam is broken?
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