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Mini LED Volume Towers (VU meters)
How to use SurfaceMapperGUI for basic projection mapping projects
How to Make a Really Horrible (Garbage) Instructable
Multiplexing 7 Segment displays with Arduino and Shift Registers
Simple No-Weld Bike Trailer
Pocket laser engraver.
Arduino Laser Show with Full XY Control
Polargraph Drawing Machine
Save heat, money, and energy with easy pelmets for your windows