Boards, robots and rigs that people built or fixed with an agent.
Newest first, as we log them.
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55 d ago
Tide & Wind Tracker shows tides and wind on an M5Stack PaperColor and tests its e-paper rendering on the ESP32-S3 itself. Test firmware renders fixtures sent over USB and returns the canvas bytes for comparison with golden images. Claude Code iterated against those tests while a person approved every change. The README has a photo of it running.
3 mo ago
code-chan runs on a Stack-chan robot with an M5Stack CoreS3 and shows whether Claude Code or Codex is ready, working or waiting for permission. The user approves or rejects a prompt on its touchscreen. A local Node.js bridge sends hook events over USB serial, and the firmware checks each message before acting. README photos show three states.
3 mo ago
StackChan Remote MCP connects Codex to an M5Stack CoreS3 StackChan robot through a FastMCP server and an MQTT broker on a VPS. Codex switches the robot's expression, gets camera photos back as MCP images and reads screen and head-pad touches from an unread queue. The README reports an end-to-end test on a CoreS3 but shows no photos or logs.
5 mo ago
Marcel Dütscher and his 10-year-old son built Pixel Pets, virtual pets for three M5Stack boards, with Claude writing the firmware under their direction. The CoreS3 version adds voice control through M5Stack's Module LLM, and pets swap gifts over ESP-NOW. Photos, a 10-second clip and a two-minute reel show the pets running on the devices.
