Blog
Technical articles on Data Engineering, MLOps, Machine Learning, and IIoT.
Siemens S7 + OPC-UA + Node-RED — From PLC to Dashboard in 30 Minutes
Step-by-step tutorial: reading data from a Siemens S7-1500 PLC via OPC-UA and displaying it on a Node-RED dashboard.
Docker vs K3s on the Shop Floor — Edge Deployment Strategies
When to use plain Docker and when to deploy K3s for industrial edge computing — with practical deployment examples.
REST vs OPC-UA vs GraphQL for Manufacturing Data
Choosing the right API paradigm for industrial data access — practical comparison with manufacturing examples.
Node-RED vs Kepware vs Ignition — IIoT Platforms Compared
An honest comparison of three popular IIoT platforms — open-source flexibility vs enterprise features vs SCADA power.
CompuLab IoT Gateway — Embedded Linux for Industrial Edge Computing
Setting up a CompuLab IoT gateway with Node-RED for industrial data collection — GPIO, CAN bus, RS485, and cellular connectivity.
Building a NATS-based Edge-to-Cloud Pipeline for Industrial IoT
Architecture guide for connecting factory floor sensors to cloud analytics using NATS leaf nodes, JetStream, and key-value stores.
Running ML Models at the Edge with ONNX and Node-RED
How to deploy trained ML models directly on edge devices using ONNX, TensorFlow Lite, and Google Coral — no cloud required.
Predictive Maintenance with Node-RED — From Vibration Sensor to Health Score
Building a complete predictive maintenance pipeline in Node-RED — signal processing, anomaly detection, and health scoring.
MQTT vs Sparkplug B vs NATS vs OPC-UA — Which Protocol for Industrial IoT?
A practical comparison of four industrial messaging protocols — when to use which, with architecture examples and code snippets.
i3x — The Open Manufacturing API That Breaks Data Silos
How the i3x open manufacturing standard by CESMII provides vendor-agnostic access to industrial data — with practical Node-RED examples.