TJA1028TK/3V3J replacement

[flash-gordon]

Hi @FOSV

First of all, thanks for sharing the project.
Second, MCP2025-330E/MD is out of date, and it's hard to find. For example, I placed an order on AliExpress, but the seller sent me some random garbage instead of the component.

Project's README mentions TJA1029TK/3V3J can be a replacement. It's not so simple. It's TJA1028TK/3V3J, not TJA1029TK/3V3J, the latter doesn't exist. TJA1028TK/3V3J also has HVSON8 package so it cannot be used without some design adjustments. As far as I get, #5 (comment) should work. I'll test it, but for now, please consider updating the README with a warning. I've ordered a circuit using Fuji_HK_V2_Rev1.5.zip and learned it all myself.

[a10kiloham]

yep the parts have moved on now and the PCB change for a HVSON8 package is probably the easiest solution since it's a smaller package it fits in that space well.

[flash-gordon]

Yeah, I've just tested it, and it works 🎉

[a10kiloham]

if you're better at Kicad than I am please share the newer board rev as mine looks like crap manually fixing the traces :)

[flash-gordon]

@a10kiloham I've just used your design. Not only do I know nothing about kicad and designing pcb it was the first pcb I've soldered. It is the courtesy of claude code, who found this repo, and a good readme file made by @FOSV Like, I literally took a photo of the wall unit and asked ai "help me automate this". Kinda encouraging that I was able to make this far.