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 got ...

Prevent drunk driving and overspeeding with Arduino. Detects alcohol and speed; stops car if alcohol's high, slows if overspeeding. Components: LCD, buzzer, LEDs, motor driver, speed & alcohol sensors ...