I needed a rotary encoder — I pulled a cheap one out of one of those “49 boards for Arduino” kits you see around. Not the finest encoder in the land, I’m sure, but it should do the job.

UEFA made a huge blunder during the Europa League final ceremony as Tottenham captain Son Heung-min and Cristian Romero missed out on winners' medals.

It is pointed out that a magnetoresistor is very sensitive to flux changes, and may therefore operate with wide tolerances in the air gap between it and the encoder wheel. It may also be designed with ...

What would be the best sub-plot if Sunderland are promoted to the Premier League? There are lots of potential memories to be made on Saturday, but which would be the greatest? We asked our writers ...