Hardware creations with the most famous microcontroller

Bomb Simulator by Dimitris Harir & Spiros Kaftanis
CContains led display for the counter a speaker for the sound and a keypad for entering the starting time. Also there are 3 interesting interrupts.

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Spin the bottle by Dimitris Harir & Spiros Kaftanis
The classic "spin the bottle" with arduino and random challenges.
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