From dfab0053c928b80b15d133f3c0661293003ebca6 Mon Sep 17 00:00:00 2001 From: Peter Cock Date: Fri, 13 Jun 2025 23:35:11 +0900 Subject: [PATCH] Link to motivating blog post --- keyboards/tutte_coxeter_36e/readme.md | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/keyboards/tutte_coxeter_36e/readme.md b/keyboards/tutte_coxeter_36e/readme.md index d694e0fc..ffc62350 100644 --- a/keyboards/tutte_coxeter_36e/readme.md +++ b/keyboards/tutte_coxeter_36e/readme.md @@ -3,12 +3,14 @@ ![Partial Tutte-Coxeter Graph (26/30 vertices, 36/45 edges)](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhvS5QfAl7YotptMtpu0nG8XOHOsqG2vocUFF2sRgrn_QwAcUQNhDkctHt_42rQor3Bb5tbAW6FiOsYqv2craP086HMTuAqWk9U0A4yOeEsQkhyphenhyphenUxoayJWf5e-N3_Jg1TC1p9YAiVPTK02pEVCUu3hl72REIk5BAjXgZGoF7T-NWQ28iRirwFs6yzFzAe0/w200-h194/Screenshot%202025-05-28%20at%2014.59.35.png) This is firmware for an PR2040 monoblock 36 key design (three rows of five, and three thumb keys, for each hand). +This is a *diode-free* design using a sparse 13 by 13 scanning matrix designed from a partial Tutte-Coxeter graph +(using only 26 vertices or GPIO pins with 36 edges or keys - see this +[blog post](https://astrobeano.blogspot.com/2025/05/ergo-mech-keyboard-wiring-using-tutte-coxeter-graph.html) +for background although the final pin selection changed). + The first physical PCB for this is designed to fit in the [Gamma Omega keyboard](https://github.com/unspecworks/gamma-omega) case, and use the same Raspberry Pi Pico based microcontroller board. -This is a diode-free design using a sparse 13 by 13 scanning matrix designed from a partial Tutte-Coxeter graph -(using only 26 vertices or GPIO pins with 36 edges or keys). - * Keyboard Maintainer: [Peter J. A. Cock](https://github.com/peterjc) * Hardware Supported: Tutte Coxeter 36e (single PCB) with Raspberry Pi Pico * Hardware Availability: https://github.com/peterjc/gamma-omega