MQTT to ThingsBoard Setting Up Device Telemetry from Scratch

Short summary

ThingsBoard is a powerful open-source IoT platform, but initial MQTT setup is confusing. This tutorial walks through creating a device, retrieving its access token, testing the connection with command-line tools, then deploying a Python script for continuous telemetry publishing. It covers MQTT topic formats, real-time visualization, and timestamp handling for batched data.

• •Create a device in ThingsBoard UI and copy its access token for MQTT authentication
• •Test MQTT connection with mosquitto_pub command-line tool before deploying code
• •Deploy Python paho-mqtt script to publish sensor telemetry every 5 seconds with real-time dashboard updates

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