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TFR9 is an experimental family of Single Board Computers combining a vintage (year 1982) Hitachi 6309 CPU with a modern (2020's) Pi Pico microcontroller to provide everything the 6309 needs, including clock, ROM, RAM, peripheral devices, and a USB connection to the outside world.

TFR/905h is the current version

• Use our plans or evolve your own: https://github.com/strickyak/tfr9

• Or buy one from Computer CoNect

• The Hardware Reference

• Remote GPIO Proposal