The Kempston interface with support USB devices (joystick, gamepad) has just been created.
The film shows the prototype of the ZXKempstonUSB device cooperating with the USB joystick and USB gamepad.
[media]https://youtu.be/AHzfyKbDM60[/media]
ZXKempstonUSB is created by 7-bit https://7-bit.pl