Programmable Christmas Jumper 12th December, 2014 Christmas is near and everyone is wearing their Christmas jumpers. Here at CoderDojo Scotland we decided to use our technical skills to improve our Christmas Jumpers to impress all our friends and families. We programmed an Arduino LilyPad ProtoSnap to play Christmas tunes accompanied with dancing LED lights. We then sewed the LilyPad along with its components into our jumper. Find out how to do it yourself . Merry Christmas from CoderDojo Scotland