SensusL
Perfect service, as always! The device, based on the STM BlueNRG_M2SP module (Bluetooth LE v5.2), collects and processes data from 13 sensors (temperature, humidity, atmospheric pressure, TVOC, PM1, PM2.5, PM4, PM10, CO2, CO, NO2, NH3, CH2O). These data are sent to an MQTT server, which formats them for display on HomeAssistant. The module also calculates the AQI for gaseous and PMx pollutants separately, in accordance with European regulations, and these are also displayed on HomeAssistant. Other values, such as absolute humidity, dew point, heat index, and atmospheric pressure reported to sea level, are calculated by the module, formatted, and sent for display on HomeAssistant. An LED indicator for reading the AQI in stand-alone mode, a battery charger and a backup RAM with RTC complete the project.
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