Make: Soviet themed launch-code box complete with missile switch covered toggles

Love puzzles, crypto, making, control panels and nuclear extinction? John Edgar Park has a maker project for you!

Build your own Cold War-era countdown timer prop with John Park's Mystery Box: Crypto Countdown Case learning guide. This mystery box is a Soviet themed launch-code box complete with missile switch covered toggles, a Feather microcontroller with red 14-segment display, and stress-inducing piezo buzzer. Use it for an escape room, prop, or wedding proposal. Your players, or potential spouse-to-be, will need to enter the correct five-switch sequence to defuse the device before all is lost. (Note: this project is a harmless prop, not an actual bomb.) Customize it with your own secret message.

Mystery Box: Crypto Countdown Case [Adafruit]

Notable Replies

  1. Yeah, what could go wrong with that?

    After all, it's not a 1970s LED alarm clock in a new case, that know-nothings could panic over.

  2. renke says:

    be careful, the enemy has a more advanced useless box technology. you need to close the Switch Gap!

  3. "Note: this project is a harmless prop, not an actual bomb."

    If you have to make a disclaimer like this then it's most definitely going to get someone in trouble :stuck_out_tongue:

  4. "Why does my nuclear football go 'The cow goes moo!' when I pull its string?"

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