Paul's DIY electronics blog

This topic was one of my earliest postings on the raspberry Pi Forum (December 2013). This is a PWM driven fan based on the core temperatu...

Recently, I had a number of Li-Ion and LiPo cells fail on me, and I also suspected a very poor capacity from many of my NiMh cells. Using a ...

I have a monitoring system in my home that tracks temperatures, humidity, air particles (pollution) air pressure, my central heating system,...

I normally don't publish much source code on my blog because the handling of this kind of data sucks on the Google Blogger site. This ...

  I started this post in December 2017 on what I now call the Version 1, which was actually a working prototype. In January 2021, I blew-up ...