$kind: mqtt-request name: Connect to Test Broker url: mqtt://109.122.252.129:1884 description: |- Connect with MQTT 5.0 using the sim-001 test account. Keep the local observer running at http://127.0.0.1:8080. Publish to robot-market/test/v1/sim-001/telemetry using QoS 1 and Retain off. Use a new message_id each time and replace the timestamp with the current UTC time (RFC3339, ending in Z). { "schema_version": 1, "device_id": "sim-001", "message_id": "postman-ui-test-001", "boot_id": "postman-ui-session-001", "sequence": 1, "timestamp": "2026-10-06T12:00:00Z", "readings": { "temperature_c": 24.75, "test_value": 123 } } order: 1000