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PCB Concepts and Materials
Circuit Board Design Class
Copper plating holiday ornaments - Chemistry lab
DIY Apple Clock
Easy Node.JS + WebSockets LED Controller for Raspberry Pi
Touchscreen RGB Light Controller
How to make cheap but very powerful LED bulbs
All You Need to Know About LEDs
Digital/Analog Clock - Arduino + PaperCraft
Dimming EL wire
How to Make a small Gas Furnace
Arduino Chandelier from Jars
Pocket laser engraver.
Disassembling a CD/DVD reader and reusing its parts