RisalDash library lets AI agents control ESP32 hardware via MCP protocol

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A developer has released RisalDash, an open-source C++ library for ESP32 and ESP8266 microcontrollers that exposes hardware controls as Model Context Protocol (MCP) tools. By adding a single line of code, each dashboard widget — such as a temperature gauge or pump toggle — is automatically converted into a named MCP tool that an AI agent can discover and call. AI clients like Claude Desktop can then connect to the device through a lightweight Node.js bridge and issue natural-language commands, such as turning on a pump when temperature exceeds a threshold. The library is designed to be memory-efficient, with unused widget types stripped by the linker and each used widget adding only 1.3–3.4 KB to the firmware. Both the library and the MCP bridge are available on GitHub under the MIT license, with a live browser demo accessible without any hardware.

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