As the heart of the radio we chose a Raspberry Pi B+, supported by an ATMega328, which should be responsible for the buttons, LEDs, servo (for the secret box) and some key functions of the riddle.
The Raspberry offers a lot of processing power yet is small enough to find its place in the case.
Based on these input and output possibilities we created some riddles, each with a unique way to solve. These can be found in the additional PDF “riddles”.
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