lvgl-integration

lvgl-integration is a skill for Claude Code, Codex from easyzoom/aix-skills. It costs 38 tokens per session (647 once invoked), scanned A, original, MIT.

A guide for integrating LVGL, an embedded graphics library for screens and user interfaces. It focuses on display output, touch or button input, timing, memory, and drawing buffers.

In plain words
What is it for?
Use it to configure or debug displays, touchscreens, encoders, keypads, timers, draw buffers, DMA, caches, and refresh scheduling on microcontrollers or embedded Linux.
Why use it?
It helps identify whether blank screens, wrong colors, tearing, touch offsets, slow refresh, or memory faults come from the hardware port rather than the widgets.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to configure or debug displays, touchscreens, encoders, keypads, timers, draw buffers, DMA, caches, and refresh scheduling on microcontrollers or embedded Linux.

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Install with agentmods
npx agentmods add skills/easyzoom/aix-skills/lvgl-integration
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add easyzoom/aix-skills --skill lvgl-integration
Clone the repo
git clone --depth 1 https://github.com/easyzoom/aix-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for lvgl-integration

README.md
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Your own site
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Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for lvgl-integration

Your own site · 80×15
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Per session 38 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 647 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00038 $0.00647
Opus 5 $0.00019 $0.00324
Sonnet 5 $0.00008 $0.00129
Haiku 4.5 $0.00004 $0.00065

Measured 10d ago against content hash 4b7190144b60, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

lvgl-integration scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/lvgl-integration/SKILL.md · 84 lines

How it starts

The opening of the file, as written. The whole thing — 84 lines — stays where its author put it; the contents beside it link to each section on GitHub.

LVGL Integration

Overview

Use this skill to integrate LVGL by proving four porting contracts: display flush, input device read, tick/timebase, and memory/draw buffer configuration. UI bugs often come from driver timing or buffer ownership, not widget logic.

When To Use

Use this skill when:

  • The user wants to add or debug LVGL/littlevGL on an MCU or embedded Linux display.
  • The issue involves blank screen, wrong colors, tearing, touch offset, slow refresh, memory faults, tick handling, or display flush callbacks.
  • The project has display, touch, encoder, keypad, RTOS, or DMA/cache constraints.

Do not use this skill when the display hardware has no proven signal. Use hardware-interface-debug first.

First Questions

Ask for:

  • LVGL major version and target platform.
  • Display controller, resolution, color format, interface, and framebuffer/draw buffer strategy.
  • Input devices: touch, buttons, encoder, keypad, or none.
  • Tick source and lv_timer_handler scheduling.
  • RAM budget, heap policy, RTOS use, DMA/cache involvement.
  • Current symptom and minimal screen test result.

Integration Checklist

  1. Bring up display flush. Fill the screen with solid colors before creating complex widgets.

  2. Configure draw buffers. Buffer size, color format, stride, and cache/DMA policy must match the display path.

  3. Provide a reliable tick. LVGL needs a monotonic tick and regular handler execution.

  4. Add input after display. Touch/encoder/keypad should be calibrated and tested independently.

  5. Bound memory. Configure heap, widget count, image assets, fonts, and buffers for the target RAM.

  6. Verify refresh performance. Measure frame time, flush completion, and whether lv_disp_flush_ready is called correctly.

Common Failures

  • Blank screen because flush callback never calls ready.
  • Wrong colors from RGB/BGR or 16-bit endian mismatch.
  • Touch coordinates need rotation/calibration transform.
  • UI freezes because lv_timer_handler is not called regularly.
  • DMA reads stale cache lines or writes to non-DMA-capable memory.
  • Fonts/images exceed flash or RAM budgets.

Read the full file on GitHub · 84 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 10d ago First seen · 84 lines · 38 tokens per session scan A 4b7190144b60

Subscribe to this mod's changes

lvgl-integration is a skill published in the GitHub repository easyzoom/aix-skills (31 stars, last pushed 1mo ago), licensed MIT. It adds 38 tokens to every session and 647 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.