After the popular single board computer, the Raspberry Pi 4 B was released by Raspberry Pi Foundation in mid 2019, I was excited to get my hands on one. I had been using the previous model (the Pi 3) for several years prior, and I enjoyed the small form factor, relative good performance, and access

This article is on the final revision of the Arduino Fan control board “CoolRunnings”. I’ve written about the first two revisions, from the board that I etched myself, to the first one from a board house, which still contained a boost converter. After that one, I designed one to be powered with a barrel jack,

I have a computer desk that I like quite well. It it was designed to be used with a desktop computer, and has all the attributes that are common with computer desks, such as keyboard trays and so on. One thing that may be a bit less common however, is that there is a cabinet