Docker OPC-UA Industrial Data Gateway
Docker OPC-UA Industrial Data Gateway Kit — Bridge Modbus RTU Sensors to Linux & OPC-UA Networks
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
You'll assemble a DIN-rail mounted Industrial Data Gateway that continuously reads Modbus RTU sensor values over RS485, processes them on an Arduino, and pushes the data via UART to a Linux host running Node-RED and an OPC-UA server inside Docker. This is the exact architecture used in factories to connect legacy sensors to modern SCADA and MES platforms.
What You'll Build
At the end of this build, you'll have a ruggedized, real-time data acquisition system. A Arduino UNO Q controller polls a Modbus RTU slave (temperature/humidity sensor not included, but simulated scope provided) using the MAX485 transceiver. Readings are time-stamped via the DS3231 RTC, displayed on the 0.96-inch OLED, and transmitted over UART to a USB-C hub connected to a Linux host. On the Linux side, a Docker container runs a Node-RED flow that ingests this serial stream, reformats the JSON, and exposes it through the OPC-UA standard—immediately visible to any SCADA client.
What You'll Learn
- Implement Modbus RTU master-slave communication over RS485 physical layer
- Bridge a microcontroller to a Linux system using UART and Docker volumes
- Configure and run a Node-RED OPC-UA server inside a Docker container
- Integrate industrial timing (RTC), display, and power regulation into one embedded system
Kit Contents
| Component | Quantity |
|---|---|
| Arduino UNO Q | x1 |
| MAX485 RS485 Transceiver | x1 |
| DS3231 RTC | x1 |
| LM2596 Buck Converter | x1 |
| 0.96in OLED | x1 |
| 120Ω Resistors | x5 |
| 10kΩ Resistors | x5 |
| 100nF Caps | x10 |
| PCB Prototype Board | x2 |
| DIN Rail Enclosure | x1 |
| USB-C Hub | x1 |
| 12V 2A PSU | x1 |
| Soldering Iron | x1 |
| Solder Wire | x1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
This kit is crafted for B.Tech ECE/EEE students working on final-year industrial IoT projects, participants in Smart India Hackathon hardware challenges, and engineering professionals building Industry 4.0 proof-of-concepts. It aligns with ATL Tinkering Lab advanced modules and is suitable for project labs at IIT, NIT, VIT, BITS Pilani, and similar institutions.
Built and Backed by Compoden
Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.
What if I get stuck during the build?
Scan the QR code on your kit box to access the AI companion trained specifically on this gateway design. If you need human guidance, WhatsApp our support team—response is typically within an hour.
Do I need a Linux computer to run the Docker part?
Yes, the Docker container requires a Linux host. We recommend a Raspberry Pi 4 or any Ubuntu desktop/laptop. The kit includes setup scripts for Docker installation and container launch.
Can I integrate this gateway with an existing SCADA system like Ignition or WinCC?
Absolutely. The Node-RED OPC-UA server follows the OPC-UA standard, so any SCADA client can browse and subscribe to the sensor tags you expose.
What if I don't have a Modbus RTU sensor for testing?
We provide a software-based Modbus slave simulator that runs on the Arduino alongside the master logic, so you can test the full chain without external hardware.
Node-RED + OPC-UA server in Docker on Linux. STM32 reads Modbus RTU sensors and bridges to Linux over UART.
What's in this kit
Choose your assembly option:
- Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
- Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items