Remote IOT Sensor monitoring via MQTT and InfluxDB
Configured with HTTP Request, Mqtt Trigger. Review the connections and setup before adapting this template.
Node categories in this workflow
- Trigger
- Web / API
- Code
Icons describe general node roles, inferred from node types. Inspect the parameters for the configured action.
Drag to pan; use + and − to zoom. Reconstructed from the exported node positions; nothing runs here. Dashed lines represent non-main connections. Full node names and notes appear below.
How it works
The exported workflow contains the following configured nodes. Their connections are shown above; inspect the JSON for the complete logic, expressions, and external actions.
| Node | Category | Type | Operation |
|---|---|---|---|
| Remote Sensor MQTT Trigger | Trigger | Mqtt Trigger | See node parameters |
| Data ingest to InfluxDB bucket | Web / API | HTTP Request | POST |
| Payload data preparation node | Code | Code | See node parameters |
Setup
- Download the JSON and import it into an isolated n8n instance. Leave the workflow inactive.
- Connect your own credentials through n8n’s credential store. Replace
REPLACE_WITH_*values with your resource identifiers. - Inspect API destinations, Code nodes, database queries, file paths, and outbound actions.
- Run with synthetic data and harmless destinations. Enable triggers only after checking the actual outputs.
Requirements
An n8n instance with the listed node types and compatible versions. Service-connected workflows may require accounts, credentials, or paid APIs.
Credential types declared in the source
mqtt
Workflow notes
Sticky Note
MQTT trigger subscribed to a topic called wokwi-weather via a Mosquitto MQTT broker. The trigger receives the temperature and humidity payloads from a DHT22 sensor connected to a remote ESP32 microcontroller
Sticky Note1
Javascript code to extract the temperature and humidity values to ensure correct JSON format for the database
Sticky Note3
HTTP request node posts temperature and humidity data from the DHT22 sensor to the InfluxDB data bucket running on a local host http://localhost:8086
Remote IOT Sensor monitoring via MQTT and InfluxDB
Remote IOT Sensor monitoring via MQTT and InfluxDB
Purpose and structure
This folder contains the Remote IOT Sensor monitoring via MQTT and InfluxDB workflow. Its executable nodes use code, httpRequest, mqttTrigger. The table and connection map below are derived from the JSON, not an inferred guarantee of behavior.
Setup
Import inactive. Configure your own credentials and replace REPLACE_WITH_* values. Review external destinations and Code nodes before running.
Entry points
Remote Sensor MQTT Trigger
Verification
Sanitized source candidate; not runtime-tested. This overview is generated from node metadata. Read the folder README for the connection map, credential types, and license.
Attribution
https://github.com/Zie619/n8n-workflows/blob/94007c1445d9258a7da116646b79473e7c7c3282/workflows/Http/1110_HTTP_Mqtt_Monitor_Webhook.json MIT; preserve source notices.