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Category: DIY Projects

DIY project write-ups by makers building with parts from Circuitrocks. Hardware list, code, and build photos.

Energy Core Lamp: 3D Printed Sci-Fi Reactor Light with COB LEDs
3d printing

Energy Core Lamp: 3D Printed Sci-Fi Reactor Light with COB LEDs

Build a glowing sci-fi reactor for your desk: a fully 3D-printed enclosure paired with a COB LED strip creates an even, dotless ambient glow.

Ann Arandia May 10, 2026
Build a 3D-Printed Tetris LED Matrix with Feather RP2040 PropMaker
3d printing

Build a 3D-Printed Tetris LED Matrix with Feather RP2040 PropMaker

Play Tetris on a 3D-printed 9x13 NeoPixel matrix powered by an Adafruit Feather RP2040 PropMaker and a STEMMA QT gamepad. Portable retro fun.

Ann Arandia May 8, 2026
Arduino UNO R4 WiFi Slot Machine That Pays Cats in Treats
arduino

Arduino UNO R4 WiFi Slot Machine That Pays Cats in Treats

Pull the lever, line up three reels, and a treat drops out. CircuitCindy's Arduino UNO R4 WiFi slot machine turns kitty dinner into a…

Ann Arandia May 7, 2026
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