Matrix DOT LED

Well, that one took me a while... calories and kilometers are calculated from steps. I search internet for information about how many steps you make when you go 1 km and also how many calories you will burn through 1 km walk. So please take that in consideration. Maybe in some future I will update this one with color changing when I will learn how to do that ; for now please enjoy because Im doing this for free... ; if you want to help me you could subscribe to my channel on YouTube - SzeptyTechniki.