Claude Controls ESP32 via MCP
Sweaty_Wedding_2330 · reddit · 2026-07-18
The author shared a physical hardware-oriented MCP server that allows Claude to read sensor data and control ESP32 once an explicit toggle is enabled.
The design focuses on permission layering:
- Read tools are enabled by default for viewing projects, variables, statuses, time series, and dashboards.
- Management tools require both a global write switch and a separately granted mcp:manage scope via OAuth authorization.
The author emphasizes that this approach is disabled by default, owner-only, separates read and write permissions, and lacks deletion tools. All write operations are flagged with source=mcp in the audit logs. The project is MIT-licensed, with design notes and a repository link provided.
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