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ESP-IDF
>=6.0.0,<6.1.0
ESP-IDF is Espressif’s official IoT Development Framework for the ESP32, ESP32-S and ESP32-C series of SoCs.
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NVS config store, JSON-Schema descriptors, REST-backed settings
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Event bus: espOS lifecycle events (network, SignalK, OTA) on the default esp_event loop
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Device conditions (warn/alarm) and the sinks that consume them
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HTTP server, REST API, SSE, the web UI from a LittleFS partition
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Log ring served over REST, so a device is debuggable without a serial cable
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Network seam: default route across transports, hostname, device id, mDNS responder, /net/status
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Station + provisioning portal, a pure-C state machine, static IP, co-processor watchdog; reports into espos_net