First Connection (MQTT)

Use this checklist to verify your first successful connection.

MQTT settings

Use values from your device template/dashboard:

• Host: your configured MQTT host
• Port:
  • 8883 (recommended)
  • 443 (supported)
• Client ID: device UID
• Username: device MQTT username
• Password: device MQTT password

With the standard IoTBackend firmware template, core handles secure transport setup.

Required topic

• Device subscribes to: devices/{uid}/command

Verification flow

1. Boot the device and connect it to Wi-Fi.
2. Connect to MQTT with secure transport.
3. Subscribe to devices/{uid}/command.
4. Publish telemetry to devices/{uid}/telemetry.
5. Open the Dashboard → Device page and check status/activity.

Expected result

• Initial state may be RECONNECTING.
• With fresh telemetry, state changes to ONLINE.