--- title: OptoBlog | Node-RED description: Node-RED | --- - [Log in](https://www.opto22.com/logon?returnurl=%2f) - [Register](https://www.opto22.com/Special-Pages/Logon.aspx) - [Your Cart](https://www.opto22.com/Checkout/Shopping-Cart) - [Contact Us](https://www.opto22.com/support/contact-us) [![Opto 22 Logo](https://blog.opto22.com/hubfs/opto22_lightsilvergradient_800px.png "Opto 22 Logo")](https://www.opto22.com) - [Products](https://www.opto22.com/products) - [What Do You Want to Do?](https://www.opto22.com/products/what-do-you-want-to-do) - [groov RIO](https://www.opto22.com/products/groov-rio) - [groov EPIC System](https://www.opto22.com/products/groov-epic-system) - [Case Studies](https://www.opto22.com/products/groov-case-studies) - [Product Selector](https://www.opto22.com/products/product-selector) - [Product Families](https://www.opto22.com/products/product-families) - [IIoT System Architecture](https://www.opto22.com/support/resources-tools/demos/groov-epic-groov-rio-architecture) - 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[System Configurator](https://www.opto22.com/products/system-configurator) - [Support](https://www.opto22.com/support) - [Manage groov](https://www.opto22.com/logon?returnurl=%2fmy-opto%2fmanage-groov) - [Documents](https://www.opto22.com/Support/Resources-Tools?rt=59) - [Downloads](https://www.opto22.com/Support/Resources-Tools?rt=68) - [Videos](https://www.opto22.com/Support/Videos) - [KnowledgeBase](https://www.opto22.com/Support/Resources-Tools?rt=67) - [Training](https://www.opto22.com/support/training-options) - [Troubleshooting](https://www.opto22.com/support/troubleshooting) - [Image Library](https://www.opto22.com/support/resources-tools/image-library-svg-editors) - [Developers](https://developer.opto22.com/) - [Talk to an Engineer](https://www.opto22.com/support/talk-to-an-engineer) - [Contact Us](https://www.opto22.com/support/contact-us) - [Warranties](https://www.opto22.com/support/warranties) - [Agency Approvals/Compliance](https://www.opto22.com/support/agency-approvals) - [Privacy Policy](https://www.opto22.com/support/privacy) - [About Us](https://www.opto22.com/about-us) - [History](https://www.opto22.com/about-us/history) - [Location](https://www.opto22.com/about-us/directions) - [Corporate Contacts](https://www.opto22.com/about-us/corporate-contacts) - [Opto 22 Product Philosophy](https://www.opto22.com/about-us/opto-22-product-philosophy) - [Customer Quotes/Testimonials](https://www.opto22.com/about-us/customer-quotes-testimonials) - [Virtual Tour](https://www.opto22.com/about-us/virtual-tour) - [Pressroom](https://www.opto22.com/about-us/pressroom) - [Distributors](https://www.opto22.com/about-us/distributors) - [International](https://www.opto22.com/about-us/international) - [Sustainability](https://www.opto22.com/about-us/sustainability) - [Careers](https://www.opto22.com/about-us/careers) - [Community](https://www.opto22.com/community) - [OptoPartners](https://www.opto22.com/community/opto-partners) - [Technology Partners](https://www.opto22.com/community/technology-partners) - [Education Partnerships](https://info.opto22.com/partnering-in-education) - [Opto Blog](https://blog.opto22.com/) - [Opto Forums](http://forums.opto22.com/) - [Events](https://www.opto22.com/community/events) - [Articles](https://www.opto22.com/articles) - [Log In](https://www.opto22.com/logon) - [Register](https://www.opto22.com/Special-Pages/Logon.aspx) - [Your Cart](https://www.opto22.com/Checkout/Shopping-Cart) - [Contact Us](https://www.opto22.com/support/contact-us)   # OptoBlog # OptoBlog ## [No Experience, No Problem—Building a control system in a week](https://blog.opto22.com/optoblog/no-experience-no-problem-building-a-control-system-in-a-week) Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on Sep 15, 2026, 2:05:19 PM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/Pre-Ship-Testing_1200.png)](https://blog.opto22.com/optoblog/no-experience-no-problem-building-a-control-system-in-a-week) ### New case study shows you how Optimum Technologies overcame a lack of experience in industrial controls to quickly build an entirely new thermal vacuum facility. Can you build a sophisticated test and control system in just one week—with no controls experience? Optimum Technologies did. Discover how they used *groov* EPIC to quickly build a thermal vacuum test system, streamline data collection and control, and even uncover a problem with their new test chamber.   Get the details from this new case study, and see what you can take away for your own automation project. [Read More](https://blog.opto22.com/optoblog/no-experience-no-problem-building-a-control-system-in-a-week) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/no-experience-no-problem-building-a-control-system-in-a-week#comments-listing) Topics: [Case studies](https://blog.opto22.com/optoblog/topic/case-studies), [Node-RED](https://blog.opto22.com/optoblog/topic/node-red), [Data acquisition](https://blog.opto22.com/optoblog/topic/data-acquisition), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic), [industrial automation](https://blog.opto22.com/optoblog/topic/industrial-automation), [aerospace](https://blog.opto22.com/optoblog/topic/aerospace) ## [New groov EPIC and RIO firmware 4.1.0 available now](https://blog.opto22.com/optoblog/new-groov-epic-and-rio-firmware-4.1.0-available-now) Posted by [Dan White](https://blog.opto22.com/optoblog/author/dan-white) on Mar 11, 2026, 9:31:06 AM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/social-suggested-images/www.designworldonline.comwp-contentuploadsgroovRIO-groveEPIC.jpg)](https://blog.opto22.com/optoblog/new-groov-epic-and-rio-firmware-4.1.0-available-now) ### The 4.1 *groov* firmware release is now available and offers more control, greater security, and fewer barriers. If you use, or plan to use, *groov* hardware, this update improves what you can do without adding hardware, software licenses, or external tools. And it’s available for every ***groov* EPIC** and ***groov* RIO** device ever shipped! Firmware 4.1.0 adds key features: network segmentation on *groov* RIO, serial integration inside CODESYS without licensing, and API-driven fleet management tools. Here is what changed, and why each change is worth your attention.  [Read More](https://blog.opto22.com/optoblog/new-groov-epic-and-rio-firmware-4.1.0-available-now) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/new-groov-epic-and-rio-firmware-4.1.0-available-now#comments-listing) Topics: [Updates](https://blog.opto22.com/optoblog/topic/updates), [Modbus](https://blog.opto22.com/optoblog/topic/modbus), [Firmware](https://blog.opto22.com/optoblog/topic/firmware), [Node-RED](https://blog.opto22.com/optoblog/topic/node-red), [CODESYS](https://blog.opto22.com/optoblog/topic/codesys), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic), [Ignition](https://blog.opto22.com/optoblog/topic/ignition), [groov RIO](https://blog.opto22.com/optoblog/topic/groov-rio) ## [Charleston Engineering is ready to help with your projects](https://blog.opto22.com/optoblog/charleston-engineering-is-ready-to-help-with-your-projects) Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on Feb 25, 2026, 10:26:38 AM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/OptoPartner-IoTCertified-2025.png)](https://blog.opto22.com/optoblog/charleston-engineering-is-ready-to-help-with-your-projects) ### Welcome newly IoT-Certified Charleston Engineering to the OptoPartner system integrator network. Looking for assistance with a control system upgrade or a project solution utilizing *groov* EPIC controllers or *groov* RIO edge I/O modules? Charleston Engineering is well versed in the IIoT and industrial automation fields and can help you implement connected, intelligent systems. As the latest engineering and design service to join the OptoPartner network, their team is ready to deliver solutions that last. Learn more about Charleston Engineering and the experience and expertise that has earned them several stand-out projects in the Southeastern United States. [Read More](https://blog.opto22.com/optoblog/charleston-engineering-is-ready-to-help-with-your-projects) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/charleston-engineering-is-ready-to-help-with-your-projects#comments-listing) Topics: [Node-RED](https://blog.opto22.com/optoblog/topic/node-red), [CODESYS](https://blog.opto22.com/optoblog/topic/codesys), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic), [Ignition](https://blog.opto22.com/optoblog/topic/ignition), [system integrator](https://blog.opto22.com/optoblog/topic/system-integrator), [OptoPartner](https://blog.opto22.com/optoblog/topic/optopartner), [groov RIO](https://blog.opto22.com/optoblog/topic/groov-rio) ## [Improving Your PAC Project System’s Performance](https://blog.opto22.com/optoblog/improving-your-pac-project-systems-performance) Posted by [Norma Rodriguez](https://blog.opto22.com/optoblog/author/norma-rodriguez) on Feb 17, 2026, 1:51:06 PM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/social-suggested-images/blog.opto22.comhubfsOptimizePACProjectTN-4.png)](https://blog.opto22.com/optoblog/improving-your-pac-project-systems-performance) ### Tips when using PAC Project with *groov* View, MQTT, Node-RED, RESTful API, and more Are you wondering what else you can do to improve your PAC Project system’s performance? Did you optimize your SNAP PAC system and apply the same techniques to your *groov* EPIC system? There may be some other options you might not think of, like these: -Moving *groov* View or MQTT to an alternate host task -Enabling only essential tags as "Public" for Ignition or MQTT -Scanning only PAC Control variables and tables if you’re using Node-RED Whether you’re running an edge device like ***groov* EPIC** or a classic **SNAP PAC** system, performance optimization is a balance among logic, I/O communication, and HMI responsiveness. You might find some time savers in the [Optimizing PAC Project System Performance](https://www.opto22.com/support/resources-tools/documents/1776-optimizing-pac-project-system-performance-tec) technical note. Here are a few highlights from the tech note. [Read More](https://blog.opto22.com/optoblog/improving-your-pac-project-systems-performance) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/improving-your-pac-project-systems-performance#comments-listing) Topics: [PAC Project](https://blog.opto22.com/optoblog/topic/pac-project), [Node-RED](https://blog.opto22.com/optoblog/topic/node-red), [MQTT](https://blog.opto22.com/optoblog/topic/mqtt), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic), [snap pac](https://blog.opto22.com/optoblog/topic/snap-pac), [technical tips](https://blog.opto22.com/optoblog/topic/technical-tips) ## [New case study: Stopping leaks with the help of AI](https://blog.opto22.com/optoblog/new-case-study-stopping-leaks-with-the-help-of-ai) Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on Feb 11, 2026, 11:04:22 AM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/instrumentation-on-pipe-900.png)](https://blog.opto22.com/optoblog/new-case-study-stopping-leaks-with-the-help-of-ai) ### Learn how cutting-edge industrial devices using artificial intelligence (AI) are saving mining companies thousands through early leak detection. Are you in an industry with strict regulations that require constant remote monitoring? That's what several companies are facing in Peru's mining region.  With miles of mining pipelines in Peru, national regulations require continuous monitoring to prevent spills and ensure safe operation. For mining companies, this means the search is on for practical, cost effective, and sustainable solutions to meet these standards. Learn how OptoPartner PK Soluciones took on the challenge of stopping pipeline leaks before they stop production. [Read More](https://blog.opto22.com/optoblog/new-case-study-stopping-leaks-with-the-help-of-ai) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/new-case-study-stopping-leaks-with-the-help-of-ai#comments-listing) Topics: [Case studies](https://blog.opto22.com/optoblog/topic/case-studies), [Node-RED](https://blog.opto22.com/optoblog/topic/node-red), [CODESYS](https://blog.opto22.com/optoblog/topic/codesys), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic), [python](https://blog.opto22.com/optoblog/topic/python), [AI](https://blog.opto22.com/optoblog/topic/ai), [mining](https://blog.opto22.com/optoblog/topic/mining) ## [Top OptoForum posts of 2025](https://blog.opto22.com/optoblog/top-optoforum-posts-of-2025) Posted by [Terry Orchard](https://blog.opto22.com/optoblog/author/terry-orchard) on Jan 7, 2026, 7:35:35 AM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/social-suggested-images/blog.opto22.comhubfssocial-suggested-imagesblog.opto22.comhubfsOptoForums-500-3-1.png)](https://blog.opto22.com/optoblog/top-optoforum-posts-of-2025) ### Learn from fellow customers and experts in last year's OptoForums community discussions. It's already time to reflect on another year, and as always, we want to share the most sought-after resources with you from the factory-supported OptoForums. You’ll see the OptoForums mentioned here on the blog from time to time, and that's for good reason. The forums offer valuable technical advice, sample code, product feature discussions, and firmware release previews that you can't find anywhere else. Read on for access to the most popular discussions, topics, and tips from the past year. [Read More](https://blog.opto22.com/optoblog/top-optoforum-posts-of-2025) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/top-optoforum-posts-of-2025#comments-listing) Topics: [Node-RED](https://blog.opto22.com/optoblog/topic/node-red), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic), [groov RIO](https://blog.opto22.com/optoblog/topic/groov-rio), [OptoForum](https://blog.opto22.com/optoblog/topic/optoforum) ## [Opto 22's Top 10 Videos of 2025](https://blog.opto22.com/optoblog/opto-22s-top-10-videos-of-2025) Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on Jan 7, 2026, 7:35:10 AM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/top-10-2025.jpg)](https://blog.opto22.com/optoblog/opto-22s-top-10-videos-of-2025) ### Find out what over 30,000 subscribers have been watching this past year on OptoVideo—Opto 22's YouTube channel. For the past several years, automation professionals, programmers, engineers, and technicians have turned to OptoVideo—Opto 22's YouTube channel—for practical insights and hands-on guidance. With over 30,000 subscribers and 3 million views, our community continues to grow, and your engagement drives everything we create. As 2025 comes to a close, we're reflecting on another year and seeing what you (our viewers) consider to be valuable content. From deep dives into Node-RED development and *groov* EPIC edge controllers, to coverage of major industry events like ProveIt! 2025 and the Ignition Community Conference, our team has been busy capturing the innovations and solutions that matter most to you. So what videos resonated most with YouTube viewers this year? Check out the Top 10 Videos of 2025 playlist. [Read More](https://blog.opto22.com/optoblog/opto-22s-top-10-videos-of-2025) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/opto-22s-top-10-videos-of-2025#comments-listing) Topics: [Videos](https://blog.opto22.com/optoblog/topic/videos), [Node-RED](https://blog.opto22.com/optoblog/topic/node-red), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic), [groov RIO](https://blog.opto22.com/optoblog/topic/groov-rio), [Unified Namespace](https://blog.opto22.com/optoblog/topic/unified-namespace), [machine monitoring](https://blog.opto22.com/optoblog/topic/machine-monitoring) ## [Node-RED Con: Real-world solutions](https://blog.opto22.com/optoblog/node-red-con-real-world-solutions) Posted by [Dan White](https://blog.opto22.com/optoblog/author/dan-white) on Nov 12, 2025, 7:45:03 AM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/NodeREDConf2025Blog_image2.png)](https://blog.opto22.com/optoblog/node-red-con-real-world-solutions) ### Watch recorded conference sessions for FREE and learn how to connect your systems with Node-RED. Included in *groov* EPIC and *groov* RIO is Node-RED, an open-source software program that allows you to wire together devices, databases, cloud applications, and APIs (application programming interfaces) using simple logic flows. Node-RED is being used in a wide range of mission-critical applications, from city utilities and semiconductor fabs to manufacturing lines and smart buildings. Anywhere an engineer needs two systems to talk, Node-RED often shows up. It’s a visual way to move data, trigger actions, and link systems. Due to Node-RED's growing popularity, it's no surprise that last week's Node-RED conference provided some excellent resources and idea exchanges. Discover the key takeaways from the conference and gain access to the session recordings. [Read More](https://blog.opto22.com/optoblog/node-red-con-real-world-solutions) 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/node-red-con-real-world-solutions#comments-listing) Topics: [Events & conferences](https://blog.opto22.com/optoblog/topic/events-conferences), [Node-RED](https://blog.opto22.com/optoblog/topic/node-red), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic), [groov RIO](https://blog.opto22.com/optoblog/topic/groov-rio) ## [What you should know about Node-RED 4.0](https://blog.opto22.com/optoblog/what-you-should-know-about-node-red-4.0) Posted by [Terry Orchard](https://blog.opto22.com/optoblog/author/terry-orchard) on Aug 6, 2025, 7:42:25 AM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/social-suggested-images/node-red-cropped-270x193-1-1.jpg)](https://blog.opto22.com/optoblog/what-you-should-know-about-node-red-4.0) ### Hear about essential Node-RED 4.0.2 updates that you'll find in the latest *groov* EPIC and RIO version 4.0 firmware. Included in [*groov* EPIC](https://www.opto22.com/products/groov-epic-system) and [*groov* RIO](https://www.opto22.com/products/groov-rio) is Node-RED, an open-source software program you can use to wire together devices, databases, cloud applications, and APIs (application program interfaces) with simple logic flows. Are you using Node-RED in your current projects? Curious to see if the latest version of Node-RED has updates that could affect your applications? Read on to see what technical updates to expect and what changes you'll want to take advantage of right away. [Read More](https://blog.opto22.com/optoblog/what-you-should-know-about-node-red-4.0) 1 Comment [Click here to read/write comments](https://blog.opto22.com/optoblog/what-you-should-know-about-node-red-4.0#comments-listing) Topics: [Updates](https://blog.opto22.com/optoblog/topic/updates), [Node-RED](https://blog.opto22.com/optoblog/topic/node-red), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic), [groov RIO](https://blog.opto22.com/optoblog/topic/groov-rio) ## [Accelerate your application](https://blog.opto22.com/optoblog/accelerate-your-application) Posted by [Dan White](https://blog.opto22.com/optoblog/author/dan-white) on Jul 16, 2025, 8:05:25 AM - [Tweet](https://twitter.com/share) [![](https://blog.opto22.com/hubfs/AccelerateIgnitionExchange.png)](https://blog.opto22.com/optoblog/accelerate-your-application) ### Take advantage of free tools to jumpstart your industrial automation projects. Whether you're an engineer, technician, or developer, starting a new project can be daunting. But what if you could hit the ground running with resources that streamline your workflow? Let's explore how you can accelerate your application using a suite of free tools designed to simplify and expedite your development process. [Read More](https://blog.opto22.com/optoblog/accelerate-your-application) 1 Comment [Click here to read/write comments](https://blog.opto22.com/optoblog/accelerate-your-application#comments-listing) Topics: [PAC Control](https://blog.opto22.com/optoblog/topic/pac-control), [Node-RED](https://blog.opto22.com/optoblog/topic/node-red), [CODESYS](https://blog.opto22.com/optoblog/topic/codesys), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic), [developer](https://blog.opto22.com/optoblog/topic/developer), [Ignition](https://blog.opto22.com/optoblog/topic/ignition), [groov RIO](https://blog.opto22.com/optoblog/topic/groov-rio), [python](https://blog.opto22.com/optoblog/topic/python) [All posts](https://blog.opto22.com/optoblog/all) [Next](https://blog.opto22.com/optoblog/topic/node-red/page/2) ### Subscribe to Email Updates ### Recent Posts ### Posts by Topic - [groov EPIC (507)](https://blog.opto22.com/optoblog/topic/groov-epic) - [groov RIO (302)](https://blog.opto22.com/optoblog/topic/groov-rio) - 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