The circuit for the timer with the green LED and buzzer:
The main circuit itself!
Ugh, and as Paul and I discovered, counterfeit sensors aren't fun. Neither, apparently, is finding a replacement IR sensor to be used. It took the exploration of 7 sensors collected from 3 different labs in the Engineering school to find the right one! Check out the progression...
hello.Can I have a list of the materials used for this project? thank you very much. greetings
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