# adafruit/Adafruit-GFX-Library

Adafruit GFX graphics core Arduino library, this is the 'core' class that all our other graphics libraries derive from

Repository: https://github.com/adafruit/Adafruit-GFX-Library
Canonical: https://ross.abutalabs.com/products/adafruit-gfx-library
Homepage: https://learn.adafruit.com/adafruit-gfx-graphics-library
Language: C
License: NOASSERTION
License Family: other
Topics: arduino-library
Last push: 2026-04-09T22:24:06+00:00

## Health v2 (maintenance only)
Score: 77/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 76, release rhythm 66, longevity 100
- inputs: {"age_days": 5287, "days_push": 146, "days_rel": 146, "gap_med": 56, "n_releases_24m": 8}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2828, forks 1672 (observed 2026-08-28T04:07:24.250324+00:00)

## What it is
Adafruit GFX is the core Arduino graphics library providing a common set of drawing primitives (points, lines, circles, bitmaps, fonts) shared across Adafruit's LCD, OLED, and LED matrix display libraries. It must be paired with a hardware-specific display driver library that handles the low-level device functions.

## Use cases
- draw shapes and text on an OLED or TFT display with Arduino
- render bitmaps and custom fonts on an LED matrix
- port a sketch between different Adafruit display types with minimal changes
- convert TTF fonts to a compact bitmap format for embedded displays
- build a UI with graphics primitives on an SSD1306 or ST7735 screen

## When to choose
- you use an Adafruit display breakout or LED matrix with Arduino
- you want a portable graphics API across multiple display types
- you need lightweight bitmap fonts and drawing primitives on microcontrollers

## When to avoid
- you need a full GUI framework with widgets and touch events
- your display is not supported by any Adafruit hardware-specific companion library
- you are targeting non-Arduino platforms without an Arduino compatibility layer

## Facets
- artifact type: library
- maturity: stable
- function: graphics, ui-components, sdk
- domain: embedded-systems, hardware, graphics
- platform: embedded, cpp, c, iot
- tags: arduino, lcd, oled, tft, display-driver, bitmap-fonts, graphics-primitives

## Member repositories
- adafruit/Adafruit-GFX-Library (main) score 77

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:24.250324+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:38:11.958524+00:00, confidence not recorded.
  - readme: https://github.com/adafruit/Adafruit-GFX-Library (fetched 2026-08-28T04:07:24.250324+00:00, sha 260b18cc1049)
  - homepage: https://learn.adafruit.com/adafruit-gfx-graphics-library (fetched 2026-08-29T09:53:29.584273+00:00, sha 06eaa2860186)
  - site_page: https://www.adafruit.com/about (fetched 2026-08-29T09:53:29.597946+00:00, sha 695846072bc5)
  - site_page: https://www.adafruit.com/faq (fetched 2026-08-29T09:53:29.595840+00:00, sha c6a89d0ac23b)
- Data as of 2026-08-30T08:39:29.467469+00:00.