A while ago I was a little into controller hardware hacking and did almost the same thing but for an MSX! Even wrote a blog entry, but unfortunately in Japanese

A while ago I was a little into controller hardware hacking and did almost the same thing but for an MSX! Even wrote a blog entry, but unfortunately in Japanese (with pictures though): https://blog.qiqitori.com/2022/09/%E6%9D%90%E6%96%99%E8%B2%BB220%E5%86%86%E3%81%A7msx%E7%94%A8%E3%81%AE%E3%82%B8%E3%83%A7%E3%82%A4%E3%83%91%E3%83%83%E3%83%89%E3%82%92%E3%82%B2%E3%83%83%E3%83%88%EF%BC%9F/ https://blog.qiqitori.com/2022/09/%E6%9D%90%E6%96%99%E8%B2%B... And one year later I also used a Raspberry Pi Pico to convert a USB controller's signals to MSX: https://blog.qiqitori.com/2023/09/using-a-usb-hid-game-controller-on-the-msx-using-a-raspberry-pi-pico/ https://blog.qiqitori.com/2023/09/using-a-usb-hid-game-contr... (And later, USB controller to Nintendo Switch, https://blog.qiqitori.com/2023/09/playing-on-the-nintendo-switch-with-a-generic-usb-hid-controller-specifically-a-fake-ps3-controller/ https://blog.qiqitori.com/2023/09/playing-on-the-nintendo-sw...)