If you're into knitting—or if you regularly need yarn for your DIY projects—you know it can be tough to keep your yarn under control and tangle free. A center-pull ball of yarn eliminates a lot of the ...

Do you have a ton of yarn that needs winding into yarn balls? Perhaps you don't have the time, or just can't be bothered to do it by hand? Then why not make yourself an Arduino-powered yarn ball ...