What you will verify
This quickstart is the starting point for an MQTT simulator workflow in SPX. The goal is to start a device twin, verify topic updates, and confirm that retained messages or telemetry flows behave as expected.
Use the full MQTT Simulator page for the broader capability overview.
Quickstart structure
- Start SPX and open the runtime UI.
- Select an MQTT-capable simulator instance.
- Verify the broker connection and topic structure.
- Subscribe with an MQTT client.
- Publish or trigger one value change and confirm the topic updates.
What this supports
This article supports IoT and device-integration teams that need repeatable MQTT telemetry, command, and reconnect tests without relying on physical devices.
Related docs
For adapter details, see the MQTT communication docs.