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⚠️ This file contains some icons that should render on GitHub, but don't worry! if they don't

📝 While all the source and documentation I've developed is written on English, the report is on Spanish to be presented at my University, I might translate it on the future


Access keyboard

This project's goal is to make a highly customizable keyboard with a bunch of accessibility add-ons, so that most people can use it.

File structure:

📂 access_kb
├─ 📂firmware/     - Code running on the keyboard, compiled using qmk_build
├─ 📂hardware/     - PCB files
|  └─ 📂libraries/     * References to KiCAD symbols and footprints 
├─ 📂software      - Client running on the PC to control the keyboard
└─ 📂typst        - Sources used to create the PDF report

Firmware

Firmware made using QMK.

Code and patches can be seen on qmk_userspace, it is built using qmk_build

Hardware

The PCB was designed with KiCAD, based on Raspberry Pi Pico development board, and using some symbol/footprint libraries:

  • marbastlib -- Keyboard parts
  • rp-pico -- Raspberry Pi Pico
  • custom
    • Screen models based on 1xN female 2.54mm pin connectors + roughly measured rectangles. Used for placing and sizing, not used in final model
    • Symbol for MC74HC589ADR2G, footprint is just a 16-pin SOIC

Features:

  • Split
  • Ortholinear
  • Shift registers to reduce the pins needed
    • PISO for matrix scanning
    • SIPO for control signals
  • Unused GPIO's are broken out so they be used too
  • e-Ink display to show the current configuration

Software

Program using Vue and Tauri on your computer, that can control some features of the keyboard and send information. Based on KarlK90's work

About

Files for my master's final project

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