Hardware/modules used:

• Microcontroller:

  • Arduino Nano 33 IoT

• Real Time Clock:

  • DS3231

• SD Storage:

  • SPI XTSD Flash

• Environmental Sensors:

  • BME280

  • PMS5003

  • SEN55

  • SCD41

System Layout:

flowchart TD
    A(Arduino) -->|JSON Data| B(MQTT Broker)
    B -->|Processed Data| C{SQL Database}
    C --> D(Web App)
    C --> F(Manual Export for Analysis)

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