Category Archives: D20

Giant D20 Is A Critical Hit in More Ways than One

[Mikael Vejdemo-Johansson] is a member of the NYC Resistor hackerspace and an avid fan of a D&D themed improv theatre called The Campaign. To show his appreciation, he decided to gift them a Christmas present: a giant D20. The original plan called for integrated LEDs to burst alight on a critical hit or miss, or let out pulses if it landed on another face. Cool, right? Well, easier said than done.

[Vejdemo-Johansson] figured a circle of 4 tilt sensors mounted on the one and twenty face would be enough to detect critical rolls. If any of the switches were tilted …read more

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