There’s three phases to my project and I’m currently completing phase two using ARM SOC’s, but I’ll be switching to RISC-V as soon as I can get my hands on suitable RISC-V hardware (or create my own, whichever comes first).
You can learn more about the project (and follow-along as well) on my blog here:
I have a Hackaday.io page for “Mark II” machine as well:
I don’t mention solar power in the documentation because I need to complete the ARM build to see where things fall power-consumption wise. I expect to have the Mark II machine complete within a month at which time I can do some measurements and see what it would take to power the system from the sun.