Arduino Coding - Hall Effect Sensor

 My initial idea involved a RFDI chip but has since evolved and changed to using a hall effect sensor that does the same thing but is a lot easier to code. 

The hall effect sensor used a magnetic to interact with, you simply tap it against and a red light flashes to notify you that it's connected. I have also coded the hall effect sensor so that when you tap against it, the warnings stop. 

In the scenario with my idea, this means the hall effect sensor will be used as an overide. So parents can basically have a cookie anytime they want and control the childrens intake.

The video below, shows how the hall effect sensor will be used in the scenario;



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