It's possible to use the memory card port SPI, there is documentation for this in wii homebrew. RVLoader uses a bitbanged I2C implementation used in boards like the PMS2 and UAMP2/GBoy audio amp although I'm not sure the documentation is clear on the RVLoader github but you could check.
The switch doesnt have GC ports so no it's not possible. If you mean the gc to usb adapter it's a quirk with the adapter itself I believe, not relating to the switch. And no we havent test the GC+ with any of the usb adapters.
Information on the old bacteria forums should stay there and not be used.. because it is old and outdated. You can buy 18650 cells individually. They are the same cells inside these battery packs but they can be higher quality and capacity if you get certain ones. Most people will use the...
One of the components on the board might be damaged. Probably the mcu and maybe another possibly. I really cant say for sure without seeing it. If you want you can ship it to me and I will try my best to repair it if I can diagnose it. If I can fix it i'll only charge cost of replaced component...
1. You can use 38awg for u10
2. No you do not need to do anything with U5 or U10. Simply make the connection from the pms to the wii via
3. If you keep the ldo on, do not wire 1.8v, if you trim it off or remove it, then wire 1.8v from the pms
4. Yes you can use a PAM or another audio amp however...
For this test I would just wire the battery and the button. if it still has an issue, there is no point in continuing until that basic test is working.