Using a bunch of WS2812B led chipset I build a net of lighting for my jumper, this is the first version so do not expect too much from it, version 2 is on it's way. I designed the small pcb to use the ...

For over a century, one of chemistry’s most important reactions has kept a secret. The Ullmann reaction, first discovered in the early 1900s, is widely used to link together molecules, helping ...