Building an interactive ESP32-S3 badge with Codex — fully offline
OpenAIDevs · x · 2026-10-28
A developer built an interactive badge on an M5Stack StopWatch dev kit (ESP32-S3) with Codex as coding partner: an animated Codex reacts to tilt, shake, and touch; single-click opens a LinkedIn QR, double-click shows a battery buddy — all running locally with no internet.
The writeup details the full workflow: Arduino project in PlatformIO with M5Unified/M5GFX libraries, animation frames stored in LittleFS, PSRAM-backed canvases to reduce flicker, and Serial Monitor debugging to tune touch sensitivity, tilt thresholds, and haptic timing. The project is entered in OpenAI's hardware build community.
More from coding & agent
- Local AI Music Pipeline: LLM Subagents + YuE2 Produce a Full Eurodisco Track — Robonotes1760 · 2026-10-28
- Granting Codex or Claude sysadmin access is powerful and dangerous — RealGeneKim · 2026-10-28
- Capy moves mobile dev to the cloud with cloud-phone build and testing — k7agar · 2026-10-28
- Replit designers shipped 765 PRs and 250K lines of code in a year — amasad · 2026-10-28
- Founder: AI coding gives startups a structural edge — more hours, more risk, less coordination — yenkel · 2026-10-28
- Reddit thread: What have people actually automated end-to-end with AI agents? — IndicationTypical972 · 2026-10-28