Pico-PIO-USB
nanoCH32V305 | Pico-PIO-USB | |
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11 | 13 | |
17 | 1,179 | |
- | - | |
10.0 | 6.0 | |
over 1 year ago | 4 months ago | |
C | ||
- | MIT License |
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nanoCH32V305
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Recommend MCU with dual USB - one host and one device IF?
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.
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RP2040 based MCU for dactyl in the works
There are dual USB r/RISCV boards with GPIO pins exposed, like nanoCH32V203 and nanoCH32V305.
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USB on pi pico
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.
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Dvorak with Qwerty hotkeys in Excel and Word
Kite has standard shortcuts option too, but it runs on dedicated MCU board, not host PC.
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USB Dongle to convert Colemak keyboard to QWERTY keystrokes?
RISC-V boards cost $3-$6 depending if you want high speed USB or full speed one.
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What is the go-to MCU if you need more pins than a promicro/elite?
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.
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nanoCH32V003 board
Their earlier boards like nanoCH32V203 and nanoCH32V305 were more user friendly, one could flash those via USB without WCH-Link.
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Hardware/software to run RISC-V ASM?
Muse Lab has MCU boards like nanoCH32V203 and nanoCH32V305.
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Keymap iterator
It runs on nanoCH32V305 dual USB r/RISCV MCU board.
- CH32V305 Development Board from MuseLab
Pico-PIO-USB
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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!
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.
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usb_embedded + RP2040
I think a PIO based USB driver is a better approach, but someone needs to do the work of porting that to Ada.
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Recommend MCU with dual USB - one host and one device IF?
That would be Pico-PIO-USB library or some people combine two Pico boards (or one board with two RP2040 MCUs).
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USB on pi pico
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).
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Using a Pi4 as a keyboard emulator
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.
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RP2040: Okay to use USB type A male-to-male for programming?
Maybe you could use something like this: https://github.com/sekigon-gonnoc/Pico-PIO-USB
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Summoning the ergo experts for guidance
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.
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USB HOST alternative!
The pico just seems to be a flexible cheap option for USB applications. An example https://github.com/sekigon-gonnoc/Pico-PIO-USB
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reading a usb keyboard input
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
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Using the second USB port on a split keyboard as a passthrough for a mouse, is it possible with QMK?
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
What are some alternatives?
riscv-isa-sim - Spike, a RISC-V ISA Simulator
tmk_keyboard - Keyboard firmwares for Atmel AVR and Cortex-M
nanoCH32V203
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
ch32v003 - CH32V003 is an ultra-cheap RISC-V MCU with 2KB SRAM, 16KB flash, and up to 18 GPIOs that sells for under $0.10
ESP32_DSLR_ASSISTANT_FLUTTER
ch32v307 - Including the SDK、HDK、Datasheet of RISC-V MCU CH32V307 and other relevant development materials
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.
ChibiOS-Contrib - Community contributed code (ports, drivers, etc).
keyboard-quantizer-doc - Convert your keyboard QMK enabled
nanoCH32V003
hid-remapper - USB input remapping dongle