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Arduino Opta Meets Blues Wireless: A Perfect IoT Pairing!
Welcome to the wireless age of industrial automation. If you’ve ever tried to squeeze an Ethernet cable into a packed control cabinet—or begged your IT team for network access just to test a PLC—you’ll understand why a shift to cellular and Wi-Fi feels like a breath of fresh air.
That’s where the Blues Wireless for Arduino Opta® comes in. Designed for seamless integration with Arduino’s industrial PLC, this DIN rail-mounted expansion module brings effortless connectivity to your automation projects. Whether you’re working in a factory, a remote install site, or even your own home setup, staying online has never been simpler.
And yes, we’re giving one away. Want a shot at getting your hands on one for free? Just leave a comment in the YouTube video telling us what you’d build with it. Best ideas win—and we know you’ve got a few.
What Is the Blues Wireless for Arduino® Opta®?
The Blues Wireless for Arduino Opta isn’t your average IoT board—because, well, it’s not a board at all. It’s a purpose-built wireless expansion module designed specifically for the Arduino Opta PLC, turning industrial logic controllers into fully connected cloud-ready devices. If you’re looking to program on it, you’re in the wrong place—this isn’t a development board. This is about giving your existing PLC projects the power of reliable wireless connectivity.
Housed in a rugged DIN rail-compatible enclosure, the module physically connects to the Arduino Opta via side-mounted pin headers. That means no flying jumper wires, no breakout cables, and no headaches. Just mount it on the same rail, push it into place, and you’re ready to start communicating.
- Designed for industrial-grade installations – Built to live inside control cabinets and automation panels.
- Seamlessly slots into Arduino Opta setups – No re-wiring or awkward cabling required.
- Supports both Wi-Fi and LTE CAT1 – Connectivity that covers multiple environments.
- Stays connected even when Wi-Fi goes down – Cellular fallback ensures uptime in critical systems.
Why It’s Actually Pretty Awesome
You know that moment when you open up a bit of kit and immediately think, “Wait... seriously? That’s all it takes?” Yeah—that was me with the Blues Wireless for Arduino Opta. Mate, I was like what? This thing doesn’t just work well, it connects in a way that’s downright satisfying.
The engineering design is clean and thoughtful. It doesn’t rely on breakout headers, ribbon cables, or anything that screams “prototype.” Instead, it uses the side-mounted pin connectors built into the Arduino Opta PLC—so when you mount both units on a DIN rail, you literally just push them together. Click. Connected. No mess. No fuss. Just a proper click-and-go setup, like it was meant to be there all along.
For anyone who’s spent way too long trying to get hardware interfaces talking in a tight enclosure, this feels like the product equivalent of a sigh of relief. It’s professional, it’s tidy, and it’s built exactly the way you hoped it would be.
Features Breakdown: Blues Brings the Goods
- Dual Connectivity – Wi-Fi + Cellular in One Box
The Blues Wireless for Arduino Opta combines both Wi-Fi and LTE CAT1 in a single unit, so you’re covered no matter what your network situation looks like. Oh, and you get 500MB of cellular data preloaded with a 10-year expiration. No subscriptions. No activation faff. Just connect and go. - Global-Ready Comms
Whether you're deploying in Detroit or Düsseldorf, you're covered. The built-in LTE CAT1 modem supports operation across both the Americas and Europe, and with an external SIM slot, you’re free to pick your own carrier when the default just doesn’t cut it. - Cloud Friendly
Out of the box, it plays nice with Blues Notehub—but that’s just the beginning. It’s also ready to talk to the Arduino® IoT Cloud, as well as major platforms like AWS, Azure, and Google Cloud Platform. You bring the code; it handles the uplink. - Easy Integration
A USB-C port lets you connect directly for communication and testing—no need to jump through firmware hoops. There’s even a dedicated connection test button to confirm you’re live without diving into debug logs. - Power-Aware by Design
Industrial deployments don’t have time for guessing games. This unit includes power outage detection and notification, backed by an integrated lithium-ion capacitor that ensures it gets that final signal out even when the lights go off.
Project Ideas: What Can You Actually Do With It?
Look, if someone can watch a full demo of this thing and still ask, “But what’s it for?”—I worry for humanity. Seriously. That said, let’s spell it out anyway, just in case you’ve been multitasking while watching.
Industrial Automation
This is the most obvious use case—and probably the one Blues had in mind. The module is built to integrate seamlessly into existing Arduino Opta PLC projects. Mount it on the same DIN rail, plug it in, and boom: your factory floor or industrial setup is now cloud-connected. And thanks to cellular fallback, your project keeps transmitting even if the Wi-Fi bites the dust.
Home Infrastructure
Just because it’s industrial-grade doesn’t mean it’s limited to factories. Got a home server, a smart home hub, or a critical appliance that needs monitoring? With power outage detection and wireless notification, this unit could be a lifesaver. Hook it into your electrical panel, and you’ll get pinged the moment your house loses power—before your router even has time to give up.
Rugged Wireless Gateway
Here’s where it gets interesting. Even though this thing is designed for Arduino Opta, it doesn’t have to be used with one. With its external SIM slot, cloud integrations, and USB-C access, you could absolutely repurpose this as a DIN rail-mounted communications hub for other devices. Think remote telemetry. Think off-grid installations. Think “Why didn’t I do this sooner?”
Final Thoughts: Should You Get One?
If you’re tired of running Ethernet cables through awkward conduit just to get your PLC online, then yes—you absolutely should get one. The Blues Wireless for Arduino Opta is all about wireless freedom with industrial-grade reliability. It’s the kind of hardware that doesn’t just make your setup cleaner—it makes your life easier.
With built-in support for both Wi-Fi and LTE, you’re covered no matter what your network looks like. Add in the fact that it comes with 500MB of cellular data that’s valid for a decade, and you’ve got a solution that’s basically set-it-and-forget-it. No subscriptions. No activation hoops. No recurring fees quietly draining your project budget.
It’s designed for real-world use, built to integrate effortlessly, and delivers the kind of reliability that industrial automation projects demand. So whether you’re building something for the factory floor or rigging up your home server for power-loss alerts, this module just works.
Giveaway: Want One for Free?
Fancy getting your hands on a Blues Wireless for Arduino Opta® without spending a penny? Easy. Just drop a comment on the YouTube video telling us how you would use it in a project. Smart factory upgrade? Power outage alert system? Remote goat tracker? We want to hear it.
And hey — if you dig this kind of stuff, hit that like button, smash that subscribe, and swing by the Blues Wireless store where you’ll find this unit and plenty more nerd candy to satisfy your inner maker.
Residing on the south coast of England, Rich has spent the last few years building Electomaker.io from the ground up. He is usually found behind a laptop coordinating the rest of the EM team and occasionally finding time to contribute articles to the blog. When not tapping away at a laptop, he can be found either paddleboarding, at the beach, playing golf (badly), or camping with his family.
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