Virtual Circuit/TinkerCad/Physical Circuit

Virtual Circuit made on CircuitLab - Credit: Prem

link to it here

CollegeBoard Circuit Diagram

TinkerCad Diagram based on Circuit-Lab diagram

credit: Prem

Virtual 555 Timer

Source: https://www.digikey.com/en/resources/conversion-calculators/conversion-calculator-555-timer

Note: Output goes to the base of a transistor that controls the LEDs and the alarm.

In the real world the period of the output signal would be much higher(once every half a day or so) but for testing purposes we decreased it to about two seconds.

Alarm/ 555 Timer:

credit: yashas

Logic Circuit

credit: Prem, Yashas, Andrew, Nathan(Group 10), Andrew Y.(Group 10)