After I retired about two years ago and got back into Amateur Radio, I realized that most of my test equipment was very much out of date and inadequate for the things I would like to do. Although I had been working in electronics for 50 years I had not kept up with the newer micro-controllers. The most interesting of them was the Arduino and all the associated items available for them. The closest thing I had any experience with was a Z80 single board computer I had used in a project in the early 1980's. It was about a foot square, cost $350 and needed a $5000 development system to do any serious software development. Now for $20 or much less for some of the Chinese clones you had a more capable platform that is small enough to embed in even hand held devices. With the availability of the inexpensive DDS modules and small LCD and TFT displays the list of possible projects keeps getting longer.
The first few entries in this blog will be some catch up on what I have done since I retired.