Raspberry Pi Pico Emulates 6502 Computer and Runs Loderunner

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The Pico is rather nice for retro projects - it’s cheap, and it’s available. Even the RP2040 chip is cheap and available for pre-assembly on PCBs.

The usual little difficulty occurs with using it in 5V systems - ideally, one needs some level-shifting ICs, although resistors and diodes will, empirically, do the job.

Some examples seen on Stardot forums:
BBC BASIC on the Raspberry Pi Pico
Is Pico Tube possible?
RP2040/Pico beeb emulator
Interfacing an Atom to a Raspberry Pi Pico

The usual little difficulty occurs with using it in 5V systems - ideally, one needs some level-shifting ICs, although resistors and diodes will, empirically, do the job.

And SMT - my eyes and hands just aren’t that nimble any more!

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