Figure an Arduino most matches the "Other" category. To be specific, it isn't an Arduino brand, it is a DigiSpark, but the trouble isn't with the device itself. The problem is with a buzzer.

I would like to see how fast I can run 100m and that’s why I build this project, it’s simple to build, you don’t need any fancy tools and we will use popular components like Arduino, buzzer ...

A second Arduino is used to read NFC and RFID cards using a Mifare RC522 reader. The system uses its own credit system, so a user can be issued a card with a certain amount of pre-paid credit.

Throw in an Arduino, buzzer, battery, and a boost converter for the switch, and that’s just about all there is to it. How to deactivate the Annoying Machine?