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Interactive Halloween costume lets passersby play Wordle

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You’re probably already familiar with the game Wordle — it was a hit in 2021 and then took the world by storm when The New York Times purchased it in 2022. The gameplay is simple to understand, but still challenging. Players have to identify a word through trial and error by making guesses to identify matching letters and letter positions. Ches’ Halloween costume called “Hallo Wordl” lets passersby play a physical version of the game.

Hallo Wordl’s gameplay is similar to standard Wordle, except that the words are all spooky. Those can include words like “ghost” or “foggy.” There doesn’t seem to be any dictionary checking, so players can enter a string of characters that isn’t a real world. But that isn’t a big deal when this mostly acts as an icebreaker for Halloween parties. Players can enter their guesses using a small 12-button keypad through T9-style typing (though there is no predictive text). That might stop gen-z from playing Hallo Wordl, but it provides a much more compact and affordable interface than a full keyboard.

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The game board displays on two 32×32 RGB LED matrix panels from Adafruit. An Arduino Mega 2560 controls the matrices using Adafruit’s GFX, Matrix Panel, and BusIO libraries. To generate a seed for randomly selecting a word, the Arduino polls one of the analog pins that doesn’t have anything connected and is therefore “floating.” Power comes from a 2200mAh 3s LiPo battery pack, which is good for around four hours of use. The components fit inside of a tombstone-shaped, 3D-printed enclosure that Ches can wear on his chest. 

Ches already tried Hallo Wordl at a pre-Halloween event and reports that it was a success.

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The post Interactive Halloween costume lets passersby play Wordle appeared first on Arduino Blog.

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Written by Quad Oner

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