Wow, we got a lot of functionality from that lowly?16F874 PIC "back in the day".? Once I got down to actually assigning GPIO lines I realized that the RPI Pico really doesn't have as many GPIOs as I would like.? It's "enough", but just barely.?
I've summarized the GPIO usage and limitations in the Wiki in the new Xcat NG hardware repo ().
Please have a look and let me know your comments.
p.s. I find the github wiki much easier to use than the groups.io wiki (probably because I've used it before) which why a new URL.
p.p.s I link the name Xcat NG better than Xcat-2022 which will look silly in 2030 (grin).
73's Skip WB6YMH