ESP32-based open-source sky quality meter for measuring light pollution, SQM, Bortle class, NELM, environmental conditions, MQTT telemetry, WebSocket dashboard, REST API and OTA updates.
mqtt iot astronomy esp32 dark-sky meteorology bme280 tsl2591 mlx90614 astrophotography sqm light-pollution littlefs nelm sky-quality-meter bortle-scale light-pollution-analysis
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Updated
Sep 10, 2026 - C++