How does IoT work?

1. Sensors & device

Physical quantities (temperature, light, buttons) are read by sensors as electrical signals. A microcontroller (Arduino, ESP32, etc.) reads those values.

2. Networking

The device connects via Wi‑Fi or Ethernet and sends data over HTTP—the same protocol as web browsing—to a cloud platform (this site).

3. Storage & visualisation

The platform uses your API key to identify the project, stores each upload’s fields (e.g. temperature, humidity), and shows them in Data view as tables or charts.

4. Flow (concept)