I want to thank @FcNanoLed. I had long thought about a serial gateway. This would be a way to add I/O to a linux computer. In the process of trying to help, I built up a linux machine running virtual box. In the virtual machine I ran Home Assistant The not well documented part of that was to connect the USB port of the computer to the virtual machine (settings-->USB-->USB Device Filters) (note that one can buy a refurbished PC for about the same price as an equivalently configured RPi)
So thanks for the inspiration!
Hello Jeelet,
Thank you for the encouragements.
Your advice to save (protect) the Oled screen is also welcome, thank you.
My code expects it, the text is mini and moves every 3 seconds. Press a key and the menu returns.
Cordially.
