I've been playing with various models of the Raspberry Pi 
single board computers over the years. Here is an index of my Raspberry Pi information.
* Raspberry Pi2 desk clock * Raspberry Pi3b+ running Tiddlywiki server and various cronjob backups * Raspberry Pi Zero W as a portable computer to provide a private network and host a copy of family Tiddlywiki site * Raspberry Pi 4 that I purchased in 11/2019 * Google AIY Vision Kit * Raspberry Pi Tips
The Raspberry Pi Academy is a place to come together and learn about the Raspberry Pi computer. how to programme it, how to set up hardware, gadgets, gizmos and general magic.