0x1abin/MultiButton

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

2358 stars · 735 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A compact C library implementing a state-machine-driven multi-button driver for embedded systems, supporting seven event types with built-in debounce. It uses a linked-list architecture to support unlimited button instances with callbacks or polling, at roughly 30 bytes of memory per button.

Use cases

• detect single and double clicks on GPIO buttons in firmware
• handle long press and repeat press events on embedded devices
• debounce mechanical buttons without external hardware
• manage many buttons with a lightweight C library
• poll button events from a timer interrupt in bare-metal code
• integrate button handling with an RTOS using thread-safe locks

When to choose

• you need reliable click/long-press detection on microcontrollers in C
• memory footprint matters and you want ~30 bytes per button
• you want both callback and polling event handling with configurable timing

When to avoid

• you need capacitive touch or analog button sensing
• your project is not in C or lacks a periodic tick source
• you need GUI-level button widgets rather than raw GPIO input

Facets

library · maturity stable

embedded state-management embedded-systems hardware developer-tools embedded c cross-platform button-driver state-machine debounce bare-metal rtos input-handling driver event-handling

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