qmk/qmk_firmware

[Feature Request] Standard functions for analog keyboards

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#25875 opened on Dec 13, 2025

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Description

Feature Request Type

  • Core functionality
  • Add-on hardware support (eg. audio, RGB, OLED screen, etc.)
  • Alteration (enhancement/optimization) of existing feature(s)
  • New behavior

Description

Are there any standard functions for analog keyboards (Hall Effect/TMR/inductive etc)? Like setting actuation point, rapid trigger, SOCD, OKMC, setting curve points, calibration? Or ways of scanning an analog matrix on ADCs? So far I noticed there's either HC164 bit shifters that power columns of sensors in turn, either analog switches that switch sensors output into ADCs.

Contributor guide

Tech stack
c
Domain
backendinfrastructure
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
4
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
over 1 week
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
needs investigation
Prerequisites
C programmingAnalog sensor basicsQMK firmware structure
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
10
Research direction
This issue requests standard functions for analog keyboards in QMK. To start, review the QMK matrix scanning implementation in `tmk core` and check for any existing analog handling in `quantum/analog.c`. The comments may contain discussions about approaches for ADC scanning and rapid trigger logic. Look into how HC164 shifters are currently used and identify where analog support could be integrated.