Global TEMPO – Hardware Details

The Global TEMPO project is an environmental monitoring system designed to collect real-time data on key environmental parameters. The system uses an Arduino Uno as its main controller and integrates several sensors to measure atmospheric and water conditions.

Hardware Prototype

Components

Arduino Uno

  • Acts as the central microcontroller for reading, processing, and managing sensor data.
  • Supports multiple analog and digital inputs for various sensors.

DHT11 Sensor (Temperature & Humidity)

  • Measures ambient temperature and relative humidity.
  • Provides digital readings in Celsius and percentage for accurate environmental monitoring.

LDR (Light Dependent Resistor)

  • Monitors ambient light intensity.
  • Converts light levels into analog voltage readings to track daylight and lighting conditions.

Rain Sensor (Analog)

  • Detects rainfall and measures its intensity.
  • Outputs variable readings depending on the amount of water, enabling precipitation monitoring.

Water Temperature Sensor (Analog)

  • Measures the temperature of water sources or liquids.
  • Provides analog data that can be interpreted to determine water conditions.

Power Supply

  • Operates via USB or a 5V DC adapter.
  • Low-power sensors ensure energy-efficient operation.

Data Transmission to the Platform

The collected sensor data is transmitted from the Arduino Uno to the Global TEMPO platform using a serial-to-cloud communication setup. Here’s how it works:

  1. Data Collection: The Arduino continuously reads data from all connected sensors (DHT11, LDR, Rain, and Water Temperature).
  2. Serial Output: The processed data is formatted into a structured string (e.g., JSON) and sent over the serial port.
  3. Cloud Connection: A connected computer or a dedicated Wi-Fi module (like an ESP8266) reads the serial data and forwards it to a cloud-based API endpoint via an HTTP POST request.
  4. Platform Integration: The API receives the data, validates it, and stores it in a database, making it available for real-time visualization on the Global TEMPO app.

Summary

The Global TEMPO hardware setup enables real-time monitoring of temperature, humidity, light intensity, rainfall, and water temperature. Its modular design allows for future expansion with additional sensors, providing comprehensive environmental data for research and practical applications.