Starry Night - Escape Room Puzzle @PlayfulTechnology
Starry Night - Escape Room Puzzle  @PlayfulTechnology
Uploaded May 2018 | Updated September 2026, 1 week ago
Here's a tutorial on how to make a simple electronic Escape Room puzzle using an Arduino, a string of plain low voltage LEDs, and four programmable Neopixel LEDs. The LEDs are inserted into holes drilled through a piece of MDF in an arrangement meant to represent stars in the night sky. Some of those stars use Neopixels rather than simple LEDs, meaning that they can be programmed to twinkle different colours.

Players find a star chart that labels the stars on the board with names which, when said aloud, sound like numbers. They must identify and read out the names of those stars that are twinkling, which gives them a numeric code to unlock a lock. For example, the twinkling stars might be: "Toohun, Dreddand, Sev, NT-9" = "279".

For more information, code downloads, and wiring diagrams, please see my Patreon page at patreon.com/playfultech - thanks!
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Starry Night - Escape Room Puzzle

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