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The Arduino cat laser that actually works

The Arduino Cat Laser That Actually Works. See how this Arduino powered cat laser works and explore the simple electronics and programming behind the project. #Arduino #DIY #Electronics Karoline ...
Will Cogley on MSN

I built a 16 channel servo tester with Arduino and 3D printing

I Built A 16 Channel Servo Tester With Arduino And 3D Printing. A simple idea turned into one of my most useful DIY tools.