Developer & DevOps
Monitor Remote Sensors via MQTT and Send Alerts
6 nodes
287
143
Automatic trigger
Workflow Description
Automation that receives sensor data through MQTT protocol, processes readings in real-time, validates thresholds, and triggers immediate notifications when critical values are exceeded. Ensures continuous oversight of distributed systems without manual intervention.
How it works
- 1.Receive incoming MQTT messages from connected sensors
- 2.Parse and transform sensor data into structured format
- 3.Evaluate readings against predefined threshold limits
- 4.Execute corrective actions or dispatch notifications
- 5.Log events and sensor values for audit and analysis
Use cases
- Monitor temperature and humidity across data center facilities
- Alert operations teams to anomalies detected in production systems
- Track multi-sensor deployments from remote geographic locations
Requirements
- MQTT broker configured and accessible from workflow
- MQTT topic subscriptions that publish sensor readings
- Threshold values defined for each sensor type
- Notification channel endpoint (email or webhook)
Service Value
Ready-made workflow template for automation delivery and service execution.
Apps Used
Mqtt Trigger
Details
Trigger
Automatic trigger
Nodes
6
Apps
1
Views
287
Downloads
143
How to Use
- 1.Click "Download Template"
- 2.Open your n8n dashboard
- 3.Go to Workflows > Import from File
- 4.Select downloaded file and configure credentials
Nodes Used (6)
Sticky Note
Sticky Note
Sticky Note1
Sticky Note
Sticky Note3
Sticky Note
Remote Sensor MQTT Trigger
Mqtt Trigger
Data ingest to InfluxDB bucket
HTTP Request
Payload data preparation node
Code