Industrial Edge Router Kit: Modbus, OPC-UA, MQTT Translation
Build a Multi-Protocol Industrial Edge Router with Arduino Portenta X8
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Deploy a true Industry 4.0 edge router that unifies your factory floor data without a single line of custom code. This kit builds a DIN rail-mounted device where the Arduino Portenta X8 runs Node-RED to simultaneously convert Modbus RTU from legacy sensors into OPC-UA and MQTT streams, while its dedicated M4 core handles microsecond-level RS485 polling - eliminating protocol deadlocks that plague single-chip solutions.
What You'll Build
A production-ready multi-protocol gateway that polls Modbus RTU slaves over RS485 with deterministic timing, maps registers to an OPC-UA object model and MQTT topics in real time, and serves a web-based Node-RED dashboard for local monitoring. The finished unit fits inside a DIN rail enclosure, powered by a 24V industrial supply, ready to drop into any control panel in a Pune auto plant or a Bangalore test rig.
What You'll Learn
- Deploy Node-RED on embedded Linux to translate between Modbus, OPC-UA and MQTT simultaneously
- Program the Portenta X8's Cortex-M4 core for real-time RS485 polling without jitter
- Design a fault-tolerant RS485 network with proper termination and fail-safe biasing
- Package a DIN rail industrial device with power regulation, surge protection and signal integrity
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Portenta X8 | 1 |
| Portenta Max Carrier | 1 |
| MAX485 RS485 | 2 |
| LM2596 Buck Converter | 1 |
| 120? Resistors | 5 |
| 10k? Resistors | 5 |
| 100nF Caps | 10 |
| PCB Prototype Board | 2 |
| DIN Rail Enclosure | 1 |
| 24V 3A PSU | 1 |
| Soldering Iron | 1 |
| Solder Wire | 1 |
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
Automation engineers in Indian manufacturing hubs who need to bridge legacy Modbus RTU machines with modern MQTT or OPC-UA systems without outsourcing development. B.Tech ECE/EEE final-year students tackling Industry 4.0 protocol interoperability projects at NITs, IITs or state engineering colleges. Smart India Hackathon participants building digital factory solutions that must interoperate with real PLCs and SCADA endpoints.
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 to open the AI companion, which recognizes your current stage and suggests fixes. You can also send a WhatsApp message - our engineers reply within hours on business days.
Can this router communicate with Ignition SCADA or Siemens WinCC?
Yes. It exposes an OPC-UA server that any OPC-UA client - including Ignition, WinCC, and Kepware - can browse. You can also publish MQTT directly to AWS IoT, Azure, or a local broker.
How do I add more RS485 channels for additional Modbus devices?
The Portenta Max Carrier breaks out extra serial pins. You can solder a second MAX485 module and configure a new Modbus-serial node in Node-RED. The AI companion includes a guide for multi-drop expansion.
Why choose Portenta X8 over a Raspberry Pi 4 for protocol translation?
Unlike a Raspberry Pi, the X8's Cortex-M4 core guarantees microsecond-level timing for RS485 polling - critical when Modbus timeouts are in milliseconds. The X8 also carries industrial certifications for 24/7 operation and includes hardware cryptographic acceleration for secure OPC-UA.
X8 runs Node-RED translating Modbus RTU + OPC-UA + MQTT simultaneously. M4 handles real-time RS485 polling.
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