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I need to add the polyfuses yet, but here is what I have so far. I think I have it right, but the power circuit on the right should let the pi pico know which program to run. So long as this schematic works, I should be able to do whatever I need in software. To free up the the GPIO pins, I...

This is very helpful! I am inexperienced when it comes to pcb design and have been mostly a high-powered diy guy. I was planning on just sending the 5 volt straight in, but mentioning the polyfuses makes me think that may be a bad idea. How do I figure out how bad of an idea that is before...

Using the CH334U that @cheesestraws mentioned I think will work with some modification to my plans. The Pico will be bus powered and all buses use 5 volt. What I will do is use diodes so each bus can power the Pico, but it won't back-feed into the other outputs. I will use two GPIO pins to...

This does look very straight forward! When it is in ADB mode, I will need to have the USB port on the pico read the USB devices, where as when it is in USB mode I will need to have it be a HID device. Depending on how cheap these are, I may just make two separate USB circuits and depending on...

@bigmessowires, is there any way I can rope you into this project? I love my Wombat and want to build it into a keyboard.

I got mine on Amazon and probably over-payed https://www.amazon.com/dp/B0CZLQTK91?ref=ppx_yo2ov_dt_b_fed_asin_title

I have done some more tinkering and learning about custom keyboards. To start I wanted to come up with a requirement list. USB Mouse Input ADB Output for Mac SE to B&W PowerMac G3 USB Output RJ9 Output for Mac 128k to Mac Plus Start button for ADB and USB needs to be on the keyboard Similar...

I am getting ready for an old school network party for my employees at the end of the year. I am finding myself in a pinch point I have not experienced before - I do not have enough keyboards and mice. I do have two Wombats, and I love them. This got me thinking though, it would be cool to...

Beautiful, this is awesome, thank you!

Hey everyone, I need some help figuring out how to make this happen. This year for my Christmas party at work, I want to setup a Net Trek and Wagon Trail 1848 network game between my IIci, Mac SE, Mac Classic, and Mac Color Classic. I know I will need to do the serial local talk, but my...

I scored two G4 12 inch Powerbooks today, one 1.5Ghz, one 1.33Ghz that will be used for parts.

Where are you? I just did mine with tantalums.

what wire do you use for a bodge? I was thinking of pulling apart a cat 6 cable, but that seems like way more copper than is needed.

I got my dad's old IIcx and have been trying to bring it back to life. I re-capped and there was a fair amount of goo near the capacitors, but no battery bomb. I have de-soldered and cleaned and re-soldered anything near the caps, but it's not working. After getting my multi meter out, I am...

I started to look at the traces and realized that there is some damage to the board. It looks like scrapes as if it was in a big scrap pile or something. I am going to go ahead and solder dip sockets in place of the ROMs and then I can move them over and try them out. If they don't work, I...

Yes, W1 is present, though I rotated the jumber to make the BMOW sim work. Good point on the traces. Luckily I have the reloaded board already, so if they traces are bad, that will solve itself.

I put my BMOW ROM in there and it started up from the ROM disk no problem, so I think my hunch about the ROM is correct. Max offered to sell me the ROM ICs but I foolishly declined. Time to get those on order!

that is definitely a possibility. I will bring a BMOW ROM in tomorrow and try it out. If that works, are there replacement ROM options? I am planning on putting in DIP sockets anywhere I can with the reloaded board.

So it wasn't chiming at all, so I reflowed everything and a couple of the chips near where the old capacitors were. I have a chime now and it immediately it does chimes of death. This is regardless of RAM configuration. I can repeat with no RAM, four simms in bank A and with 8 simms in A and...

So I have a little collecting beige boxes problem. My dad's first (and my first) computer is a IIcx. He had a processor riser card added to give it a cache slot where he then installed a Mobius Speedster. I still have the IIcx. While reconnecting with this hobby, I decided to recap my old IIci...