B_rob1
.
- Joined
- Nov 24, 2025
- Messages
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- 27
Wee Wii
Hello all, some of you may have seen me post about this in the discord a while back, but I am now finally getting around to making a post.
I have designed a full PCB recreation of the Wii motherboard with schematic, the project is open source, and the KiCad files are available on GitHub.
This board is not really very useful as a standalone portable design, it was mostly designed to verify the schematic and board functionality, it's 62.2 x 71.5 mm. It's not competing with any of the advanced trims and only really beats out the OMGWTF trim in size.
This board should be a good starting point for anyone who wants to design a fully integrated portable Wii without having to cut and relocate components on a regular board.
Do note that some of the nets are not labeled perfectly, and there may be issues that I am not aware of, I did make a functional board populated with the components from a donor board, with some bodges on an old version of the schematic. Those issues should all be resolved, and there should not be many issues left on the board besides poor labeling on some of the pads, like the sd card pads, and the gamecube card reader pads. MX chip RTC functionality has not been confirmed yet, I need to harvest another gamecube controller port to navigate the menu.
GitHub: Wee Wii
I am currently re-ordering a board with actual PCBA done, hand soldering the passives without a stencil wasn't exactly fun, but I want to ensure that I find out soon if my schematics or BOM have any problems. My old footprints were labeled for me probing each package from the top left pad, this is how my schematic was wired before converting it to the actual package labels.
You can see the old naming convention here:
Also the initial symbols were in order measurements, the new ones sort them by type, here are some examples:
Also the entire GPU-CPU bus is labeled, so it is slightly easier to keep up with length ranges of the different nets.
Soldering is rough, I populated this without a stencil, some of it was with lowmelt paste, but I got tired of doing that and changed to a 1.5mm iron tip, USB was also hastily moved trying to get it to boot RVLoader. The polarity on the old design was not correct for the usb ports I was using, so I had to flip them.
This was taken Jan 31st when I got it to boot, video is in the discord from around that time.
I am not very active on the forum but I will try and answer questions when I see them, it would likely be fastest to reach out on discord though.
Hello all, some of you may have seen me post about this in the discord a while back, but I am now finally getting around to making a post.
I have designed a full PCB recreation of the Wii motherboard with schematic, the project is open source, and the KiCad files are available on GitHub.
This board is not really very useful as a standalone portable design, it was mostly designed to verify the schematic and board functionality, it's 62.2 x 71.5 mm. It's not competing with any of the advanced trims and only really beats out the OMGWTF trim in size.
This board should be a good starting point for anyone who wants to design a fully integrated portable Wii without having to cut and relocate components on a regular board.
Do note that some of the nets are not labeled perfectly, and there may be issues that I am not aware of, I did make a functional board populated with the components from a donor board, with some bodges on an old version of the schematic. Those issues should all be resolved, and there should not be many issues left on the board besides poor labeling on some of the pads, like the sd card pads, and the gamecube card reader pads. MX chip RTC functionality has not been confirmed yet, I need to harvest another gamecube controller port to navigate the menu.
GitHub: Wee Wii
I am currently re-ordering a board with actual PCBA done, hand soldering the passives without a stencil wasn't exactly fun, but I want to ensure that I find out soon if my schematics or BOM have any problems. My old footprints were labeled for me probing each package from the top left pad, this is how my schematic was wired before converting it to the actual package labels.
You can see the old naming convention here:
Also the initial symbols were in order measurements, the new ones sort them by type, here are some examples:
Also the entire GPU-CPU bus is labeled, so it is slightly easier to keep up with length ranges of the different nets.
Soldering is rough, I populated this without a stencil, some of it was with lowmelt paste, but I got tired of doing that and changed to a 1.5mm iron tip, USB was also hastily moved trying to get it to boot RVLoader. The polarity on the old design was not correct for the usb ports I was using, so I had to flip them.
This was taken Jan 31st when I got it to boot, video is in the discord from around that time.
I am not very active on the forum but I will try and answer questions when I see them, it would likely be fastest to reach out on discord though.
