Telemetry

Data gathered from sensors and sent to the cloud.

In IoT systems, telemetry flows from device to cloud (D2C) via a communication protocol (typically MQTT). Telemetry data is time-series data — measurements at specific points in time.

Examples: temperature readings, GPS coordinates, humidity levels, accelerometer data.

Contrast with: device twin reported properties (configuration/state, not time-series) and commands (C2D, not D2C).

See Also

• IoT System Architecture topic
• MQTT and IoT Protocols topic