Pico-PIO-USB VS hid-remapper

I know that I can have multiple ports using https://github.com/sekigon-gonnoc/Pico-PIO-USB, but I wanted to know if I could make one port a device and the other a host at the same time using the given PIOs and state machines.

I think a PIO based USB driver is a better approach, but someone needs to do the work of porting that to Ada.

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

If you need both device and host interfaces at the same time, then you can either use Pico-PIO-USB library or combine two Pico boards (or one board with two RP2040 MCUs).

However, not so many microcontrollers can easily do USB keyboard input (host) and output (device) at the same time, if that's what you need. You could look at the Teensy 4 or Teensy 4.1 for example. There might be other Arduino-compatible boards that can do it, I'm not sure which. Apparently it's also possible on the Pi Pico with this project: sekigon-gonnoc/Pico-PIO-USB: USB host/device implementation using PIO of raspberry pi pico (RP2040). But that's a bit of an advanced hack, and I can't tell you how well it works.

Maybe you could use something like this: https://github.com/sekigon-gonnoc/Pico-PIO-USB

you should check out https://github.com/sekigon-gonnoc/Pico-PIO-USB for someone that has implemented USB chaining with rp2040. unfortunately it uses up both PIOs.

The pico just seems to be a flexible cheap option for USB applications. An example https://github.com/sekigon-gonnoc/Pico-PIO-USB

Highly experimental for advanced users. Adds a second USB port to Pi Pico using the PIO controller so the pico can connect to a PC and keyboard at the same time. https://github.com/sekigon-gonnoc/Pico-PIO-USB

watch the video to see this non-qmk firmware for the Rasberry pi Pico used to daisy chain devices with fixed device and host ports https://github.com/sekigon-gonnoc/Pico-PIO-USB

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.