nanoCH32V305 VS hid-remapper

If you are willing to try r/RISCV ones, then nanoCH32V203 (with two Full-Speed interfaces) and nanoCH32V305 (with one Full-Speed and one High-Speed interface) might be enough.

There are dual USB r/RISCV boards with GPIO pins exposed, like nanoCH32V203 and nanoCH32V305.

There are RISC-V MCUs that have two USB interfaces, but those are not supported by QMK yet. I tried some of those boards in kite project.

Kite has standard shortcuts option too, but it runs on dedicated MCU board, not host PC.

RISC-V boards cost $3-$6 depending if you want high speed USB or full speed one.

u/Bounty1Berry is exploring RISC-V nanoCH32V305 board, but it's a new board that is not supported by (Q|T|Z)MK yet, so not really go-to option at this stage.

Their earlier boards like nanoCH32V203 and nanoCH32V305 were more user friendly, one could flash those via USB without WCH-Link.

Muse Lab has MCU boards like nanoCH32V203 and nanoCH32V305.

It runs on nanoCH32V305 dual USB r/RISCV MCU board.

You could use HID Remapper basically a USB dongle that sits between your device and computer. It's hardware based so no installation on company device, program it at home, plug n play. Supports macros too. Very cheap and easy to build.

Try to build this: https://github.com/jfedor2/hid-remapper

If you do not need WiFi or BLE, take a look at https://github.com/jfedor2/hid-remapper. Works on Adafruit Feather RP2040 with USB Type A Host board. Or use a raspberry pi pico board and wire in a USB Type A host connector. The USB host works by bit-bang assisted in hardware using the PIO.

Here's another solution that is OS independent. I configured mine so that if I hold right click, moving the ball scrolls. Right click works normally when clicked. https://github.com/jfedor2/hid-remapper

The best way I have found is to build an HID remapper and remap the buttons with its web interface. I know most would prefer a software solution but this is very intuitive and gives you so much control over the device.

I know this open source device exists, which among other things can do polling rate overclocking to ensure 1 kHz polling rate.

There's always HID Remapper!

Bill and myself did some e-mail exchanges this week starting about April 25. He is quick. He managed to get the hid-remapper (https://github.com/jfedor2/hid-remapper) from Jacek Fedoryński (jfedor2) working on this new RP2040 and we got our first taste of tremor filtering with the new device.

That would be Pico-PIO-USB library or some people combine two Pico boards (or one board with two RP2040 MCUs).

Check out hid-remapper. It allows remapping of all Slimblade buttons with a lot of flexibility.