Pico-PIO-USB vs keyboard-quantizer-doc

Pico-PIO-USB

USB host/device implementation using PIO of raspberry pi pico (RP2040). (by sekigon-gonnoc)

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keyboard-quantizer-doc

Convert your keyboard QMK enabled (by sekigon-gonnoc)

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Pico-PIO-USB		keyboard-quantizer-doc
	Project
13	Mentions	2
1,173	Stars	53
-	Growth	-
6.0	Activity	6.0
3 months ago	Latest Commit	about 1 month ago
C	Language	Python
MIT License	License	MIT License

The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

Pico-PIO-USB

Posts with mentions or reviews of Pico-PIO-USB. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-06-22.

2023 Jun 19 Stickied -FAQ- & -HELPDESK- thread - Boot problems? Power supply problems? Display problems? Networking problems? Need ideas? Get help with these and other questions!
2 projects | /r/raspberry_pi | 22 Jun 2023

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.
usb_embedded + RP2040
2 projects | /r/ada | 2 Jun 2023

I think a PIO based USB driver is a better approach, but someone needs to do the work of porting that to Ada.
Recommend MCU with dual USB - one host and one device IF?
5 projects | /r/embedded | 14 Apr 2023

That would be Pico-PIO-USB library or some people combine two Pico boards (or one board with two RP2040 MCUs).
USB on pi pico
4 projects | /r/olkb | 31 Mar 2023

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).
Using a Pi4 as a keyboard emulator
2 projects | /r/raspberry_pi | 20 Feb 2023

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.
RP2040: Okay to use USB type A male-to-male for programming?
1 project | /r/embedded | 16 Dec 2022

Maybe you could use something like this: https://github.com/sekigon-gonnoc/Pico-PIO-USB
Summoning the ergo experts for guidance
3 projects | /r/ErgoMechKeyboards | 31 Aug 2022

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.
USB HOST alternative!
2 projects | /r/esp32 | 22 Jun 2022

The pico just seems to be a flexible cheap option for USB applications. An example https://github.com/sekigon-gonnoc/Pico-PIO-USB
reading a usb keyboard input
1 project | /r/raspberrypipico | 21 Jun 2022

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
Using the second USB port on a split keyboard as a passthrough for a mouse, is it possible with QMK?
1 project | /r/ErgoMechKeyboards | 25 Apr 2022

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

keyboard-quantizer-doc

Posts with mentions or reviews of keyboard-quantizer-doc. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-03-31.

USB on pi pico
4 projects | /r/olkb | 31 Mar 2023

Check hid-remapper and keyboard-quantizer projects for example.
Keymap iterator
4 projects | /r/KeyboardLayouts | 7 Jan 2023

On ARM side RP2040 might prevail (cf. hid-remapper and keyboard-quantizer).

What are some alternatives?

When comparing Pico-PIO-USB and keyboard-quantizer-doc you can also consider the following projects:

tmk_keyboard - Keyboard firmwares for Atmel AVR and Cortex-M

hid-remapper - USB input remapping dongle

BLE-Micro-Pro - BLE Micro Pro is a breakout board of BL654(nrf52840 module) which is almost compatible with Pro Micro. This board is designed for wireless split DIY keyboards

nanoCH32V305

ESP32_DSLR_ASSISTANT_FLUTTER

kite

tryadactyl - Methodology for custom tuning a concave, column-staggered, split keyboard with thumb clusters (AKA Dactyl). Centered on an OpenSCAD library for designing all sorts of ortholinear-ish keyboards supporting a variety of keycaps including Cherry profile. Additionally supports trackpoints, and 5-way navigation switches.

pouetpouet-board - DIY ortholinear keyboard with pure Rust or Ada firmware

picodvi - [Moved to: https://github.com/Wren6991/PicoDVI]

Mopidy - Mopidy is an extensible music server written in Python