Remote IoT Sensor Monitoring via MQTT and InfluxDB
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Monitors remote IoT sensors using MQTT for data ingestion and InfluxDB for storage.
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About This Workflow
Overview
This workflow enables real-time monitoring of remote IoT sensors, specifically focusing on a DHT22 sensor transmitting temperature and humidity data via MQTT. The data is then processed and sent to an InfluxDB database for storage and analysis.
Key Features
- Subscribes to MQTT topics for sensor data.
- Parses and validates incoming JSON sensor payloads.
- Formats data into InfluxDB line protocol.
- Ingests data into an InfluxDB bucket via HTTP POST requests.
How To Use
- Configure an MQTT broker and connect your ESP32 with the DHT22 sensor to publish data to the
wokwi-weathertopic. - Set up an InfluxDB instance and create a bucket for storing sensor data.
- In n8n, configure the 'MQTT Trigger' node with your MQTT broker credentials and the
wokwi-weathertopic. - Configure the 'HTTP Request' node with your InfluxDB API URL, Organization ID, Bucket name, and API Token.
- Ensure the environment variables
API_BASE_URLare set correctly.
Apps Used
Workflow JSON
{
"id": "fe9ea643-271a-430b-ae3d-ca73a26d1c3e",
"name": "Remote IoT Sensor Monitoring via MQTT and InfluxDB",
"nodes": 0,
"category": "IoT & Telemetry",
"status": "active",
"version": "1.0.0"
}Note: This is a sample preview. The full workflow JSON contains node configurations, credentials placeholders, and execution logic.
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ID: fe9ea643-271a...
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