Paul's DIY electronics blog

Updated text and diagrams after I fully built and tested the supply. The Auxiliary Power & Reference Supply Enough with the...

I actually built prototypes of the earliest design and started to learn more about the functionality, and try to find the limits. I'll g...

Although I have been using my 0-30V 0-1 or 3Amp power supplies for quite some time now, I have never been really happy with them. ...

This was actually my very first post on the raspberrypi.org forums. It has been visited a million+ times, so it has been useful to many peo...

For an Arduino based project, I wanted to use a rotary decoder to control a menu based structure. As you are probably aware, there are doz...