University of Southern California The USC Andrew and Erna Viterbi School of Engineering Pre-College Summer Programs - Student Portfolios

Alarm Circuit

   

This is an alarm circuit it is one part of the entire anti-theft circuit. We had to make sure that the logic was correct and try to figure out the little things that made a difference in order to make the alarm go off. After we figured out what was wrong we played around with the voltage witch either made the alarm louder or softer.

This is the LED circuit. The LED circuit was difficult to build but we finally got the hang of it. We found out that we were working with a fried chip and therefore we had figuired out how to make the LEDs light up.