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Egg-Bot
The Egg-Bot is an art robot designed by Bruce Shapiro that’s fun to watch as it draws intricate designs on eggs or any other round objects 3cm–10cm in diameter, including ornaments, golf balls, and light bulbs. You design the patterns in the free app Inkscape, and the bot draws them using fine-point Sharpies, engraving tools, […]
Electronics and Controllers: arts, crafts, electronics, robotics
EZ-Expander Shield
When working with the Arduno Uno, I often find myself needing more output ports than it’s got. Instead of having to trade my Uno for an Arduino Mega, I just plug in an EZ-Expander Shield, which plugs into three I/O ports and furnishes 16 — instantly providing 13 more I/Os. While each added pin can […]
Electronics and Controllers Microcontrollers: Arduino, electronics, microcontrollers, Shield
ProtoSnap Pro Mini
The ProtoSnap Pro Mini is one of the more interesting Arduino kits. Manufactured on a single PCB, it includes a preassembled Arduino Pro Mini (0.7″×1.3″) and snap-off accessory boards like an FTDI Basic Breakout board, buzzer, RGB LED, light sensor, pushbutton, and a general-purpose protoboard for wiring up your own custom components. Snap off each piece, and […]
Electronics and Controllers Microcontrollers: Arduino, electronics, microcontrollers
HD2Combo Remote Control Relay
Don’t tell the co-op board, but I now use this RF fun relay kit to get into my apartment building wirelessly and keylessly, by hacking into its intercom system, which lets you buzz people into the front door. The kit consist a small printed circuit board and a key fob remote. After enclosing the PCB […]

