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Adafruit GFX Library

Name: Adafruit GFX Library
Author: adafruit

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

2,826 stars1,673 forksCUpdated 4/9/2026100% free · open source

What it does

Provides a common graphics API for Arduino‑compatible displays, letting you draw shapes, text and bitmaps with a single set of functions.

When to use it

•You need to drive an OLED, TFT, or e‑ink screen from an Arduino or ESP32 and want a single code base for all displays.
•You want to prototype UI elements (menus, gauges, scrolling text) without writing low‑level pixel code.
•You are integrating multiple display modules and need a consistent drawing API across them.

Ready-to-paste prompt

display.fillRect(10, 20, 50, 30, SSD1306_WHITE); // draw a filled rectangle
display.setCursor(0,55);
display.setTextSize(1);
display.print("Battery: ");
display.print(analogRead(A0) * (5.0/1023.0), 2);
display.println("V");
display.display();

Heads up: The core GFX library alone won’t talk to hardware – you must also install the *specific* display driver library (e.g., Adafruit SSD1306, ILI9341, etc.) and match the constructor parameters (width, height, I²C address or SPI pins) exactly, otherwise the screen stays blank.

Saves to your device

Use with Claude

New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

🛠️ Technical setup

Expect 20–40 minutes in a terminal — or let your AI agent drive it.

Try it instantly — no install

Claude Code

mkdir -p ~/.claude/skills/adafruit-gfx-library && curl -fsSL https://workflowstacks.com/api/skills/adafruit-gfx-library/claude-skill -o ~/.claude/skills/adafruit-gfx-library/SKILL.md

Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)

claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

How Adafruit GFX Library works

Codeflow

Free to inspect

Adafruit GFX Library is a large C project (~45k lines across 66 code files). It is a full software project: use it through its install path rather than reading it end to end. Last commit 5 months ago, Other license, no tests found.

Size

Large codebase

~45k lines · 66 code files · ~6 h to skim

Setup

Developer setup

A real software project. Use it via its install path; don't expect to read it all.

Runs on

No API keys detected

C 84%C++ 16%

Where to start reading

1
README.md
Start here — what it does and how to install it
2
examples/GFXcanvas/GFXcanvas.ino
A worked example — copy this to get going

What's in each folder

examples/Examples you can copy4 files

fontconvert/Folder5 files

Fonts/Images & static assets52 files

.github/CI / automation (GitHub Actions)3 files

READMENo tests foundDocumentedCI checksExamples includedOther licenseUpdated 5 mo ago

Use with Claude

New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

🛠️ Technical setup

Expect 20–40 minutes in a terminal — or let your AI agent drive it.

Try it instantly — no install

Claude Code

mkdir -p ~/.claude/skills/adafruit-gfx-library && curl -fsSL https://workflowstacks.com/api/skills/adafruit-gfx-library/claude-skill -o ~/.claude/skills/adafruit-gfx-library/SKILL.md

Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)

claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

Quick Actions

Details

Creator

adafruit

Language