Are you ready to take on the 10,000 step challenge? Program a  micro:bit – a kind of tiny computer – to create a wearable step counter that measures your activity throughout the day. Customize a laser cut leather carrying pouch for the step counter and take it wherever you go. You will need the following to complete this project: Micro:bit controller 2 x AAA battery packs, Thick thread or chord, 2 Key rings, Large needle.