Good morning, everyone! Are you enjoying The Weather, or are you melting?

Either way, if you're working on any Raspberry Pi or Pico projects, we'd love to see a photo! It may end up in the mag

#MakerMonday (on a Tuesday)

@rpimag I've got a rp2350 keeping an eye on a Z80 in my rc2014 as an experiment...

This is using a Pimoroni PGA2350 in a bespoke breakout PCB hooked up to the rc2014 bus.

#MakerMonday #RC2014 #RP2350

@diyelectromusic @rpimag Looks cool!
What does "keeping an eye on" mean? Do you use it for debugging or something else?

@roseen @rpimag Just experimenting at the moment to see the art of the possible.

In my accompanying blog post I'm now getting it watch for specific IO accesses...

https://emalliab.wordpress.com/2026/05/26/watching-a-z80-from-an-rp2350/

Watching a Z80 from an RP2350

I’m messing around with the Raspberry Pi Pico RP2350 and PIO and at some point want to see if I can hook it up to a Z80. As a starter, I’ve been experimenting with seeing if I can get a…

Kevin's Blog
@diyelectromusic @rpimag Ah, that was a fun blog! Today's find!
@diyelectromusic @rpimag I used the same board for my Z80 Tracer, maybe you find it inspiring. It was invaluable in a couple projects. https://github.com/hanshuebner/z80-tracer
GitHub - hanshuebner/z80-tracer: MOVED to code.netzhansa.com/hanshuebner/z80-tracer. This GitHub mirror is archived.

MOVED to code.netzhansa.com/hanshuebner/z80-tracer. This GitHub mirror is archived. - hanshuebner/z80-tracer

GitHub

@hanshuebner Ah thanks - that one hasn't come up so far in my searching, so I'll add that to my list of references of things doing interesting things with RP2350, PIO and Z80s :)

I notice you state it wasn't tested on real hardware - any particular reason? Or is that comment now out of date?

@diyelectromusic It is outdated. I used it to port the VT100 firmware to the NorthStar Advantage. Would not have been possible without.