---
title: OptoBlog | Node-RED (3)
description: Node-RED |  (3)
---

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# OptoBlog

# OptoBlog

## [Top 10 Videos of 2023](https://blog.opto22.com/optoblog/top-10-videos-of-2023)

 Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on Jan 3, 2024, 9:59:25 AM

- [Tweet](https://twitter.com/share)

[![](https://blog.opto22.com/hubfs/top10-2023-2.jpg)](https://blog.opto22.com/optoblog/top-10-videos-of-2023)

### Did you watch all of the 10 most popular videos on the Opto 22 YouTube channel in 2023?

If you're one of the over 27,000 subscribers who follow the OptoVideo channel on YouTube, you have first access to all the new video content we produce. Whether it's a new Node-RED developer video, product overview, or a technical how-to workshop, you get it all.

So what topics proved most useful (and popular) with our viewers last year? Let's review Opto 22's [Top 10 Videos of 2023](https://www.youtube.com/playlist?list=PLKYvTRORAnx4yWz_5SwBdPy86IX7sKwae).

[Read More](https://blog.opto22.com/optoblog/top-10-videos-of-2023)

 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/top-10-videos-of-2023#comments-listing)

 Topics: [Videos](https://blog.opto22.com/optoblog/topic/videos), [Node-RED](https://blog.opto22.com/optoblog/topic/node-red), [groov View](https://blog.opto22.com/optoblog/topic/groov-view), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic), [groov Manage](https://blog.opto22.com/optoblog/topic/groov-manage), [groov RIO](https://blog.opto22.com/optoblog/topic/groov-rio), [YouTube](https://blog.opto22.com/optoblog/topic/youtube)

## [groov EPIC Learning Center returns](https://blog.opto22.com/optoblog/groov-epic-learning-center-returns)

 Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on Nov 8, 2023, 7:21:00 AM

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[![](https://blog.opto22.com/hubfs/EPIC-LC2_KIT-1-20221025_.png)](https://blog.opto22.com/optoblog/groov-epic-learning-center-returns)

### Learn and experiment with your own updated *groov* EPIC Learning Center 2

The new groov EPIC Learning Center 2 is in production now—and it includes even more features and capabilities than the original! See what's included in the new [GRV-EPIC-LC2](https://www.opto22.com/products/product-container/grv-epic-lc2), and be ready to take on your industrial automation and IIoT applications.

A complete package of fully functioning EPIC hardware and software, the *groov* EPIC Learning Center is designed as an integral part of our **free [OptoU Online Training](https://training.opto22.com/page/groov-epic-training)** at training.opto22.com.

So what's new this time around?

[Read More](https://blog.opto22.com/optoblog/groov-epic-learning-center-returns)

 6 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/groov-epic-learning-center-returns#comments-listing)

 Topics: [Training](https://blog.opto22.com/optoblog/topic/training), [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), [groov EPIC Learning Center](https://blog.opto22.com/optoblog/topic/groov-epic-learning-center), [Ignition](https://blog.opto22.com/optoblog/topic/ignition)

## [OptoMMP Tools in groov Manage](https://blog.opto22.com/optoblog/optommp-tools-in-groov-manage)

 Posted by [Terry Orchard](https://blog.opto22.com/optoblog/author/terry-orchard) on Oct 5, 2023, 9:20:36 AM

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[![](https://blog.opto22.com/hubfs/OptoMMPblog-IOservices.png)](https://blog.opto22.com/optoblog/optommp-tools-in-groov-manage)

### This tech tip post covers some *groov* Manage tools that make the Opto Memory Map Protocol easier to use.

The Opto Memory Map Protocol (OptoMMP) is a powerful method of interacting with Opto controllers, everything from a PAC brain to the latest *groov* RIO—however, it's often overlooked and underused. This blog post covers some tools built right in to *groov* Manage that make OptoMMP more approachable, easier to implement, and straightforward to debug.

[Read More](https://blog.opto22.com/optoblog/optommp-tools-in-groov-manage)

 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/optommp-tools-in-groov-manage#comments-listing)

 Topics: [Node-RED](https://blog.opto22.com/optoblog/topic/node-red), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic), [groov Manage](https://blog.opto22.com/optoblog/topic/groov-manage), [groov RIO](https://blog.opto22.com/optoblog/topic/groov-rio), [OptoMMP](https://blog.opto22.com/optoblog/topic/optommp)

## [groov Manage: Node-RED](https://blog.opto22.com/optoblog/groov-manage-node-red)

 Posted by [Ben Orchard](https://blog.opto22.com/optoblog/author/ben-orchard) on Aug 29, 2023, 1:07:09 PM

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[![](https://blog.opto22.com/hubfs/thumb-gm-nodered-20230626a.jpg)](https://blog.opto22.com/optoblog/groov-manage-node-red)

### Find out what's behind the Node-RED button on the *groov* Manage home screen.

In this week's edition of our 12-part *groov* Manage journey, we take a look at Node-RED. This low-code/no-code programming tool is a popular feature of *groov* EPIC and *groov* RIO.

Our engineers love all aspects of technology, so it's no surprise to learn that many of them were tinkering with Node-RED at home before bringing their excitement to work.  After some roundtable discussions on just how much Javascript coding was required (hint: as little or as much as you want), we decided to embed Node-RED into our product range and future hardware devices.

Watch [*groov* Manage: Node-RED](https://www.opto22.com/support/resources-tools/videos/playlist-what-is-groov-epic?wchannelid=61lkudfc8c&wmediaid=lhe2kbk7nz) to see why Node-RED is so popular with *groov* EPIC and RIO customers.

[Read More](https://blog.opto22.com/optoblog/groov-manage-node-red)

 1 Comment [Click here to read/write comments](https://blog.opto22.com/optoblog/groov-manage-node-red#comments-listing)

 Topics: [Node-RED](https://blog.opto22.com/optoblog/topic/node-red), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic), [groov Manage](https://blog.opto22.com/optoblog/topic/groov-manage), [groov RIO](https://blog.opto22.com/optoblog/topic/groov-rio), [groov Manage series](https://blog.opto22.com/optoblog/topic/groov-manage-series)

## [What's new in Node-RED v3.0](https://blog.opto22.com/optoblog/whats-new-in-node-red-v3.0)

 Posted by [Terry Orchard](https://blog.opto22.com/optoblog/author/terry-orchard) on Aug 2, 2023, 10:29:21 AM

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[![](https://blog.opto22.com/hubfs/NodeREDWelcome30.png)](https://blog.opto22.com/optoblog/whats-new-in-node-red-v3.0)

### With the latest [*groov* 3.5 firmware](https://blog.opto22.com/optoblog/groov-epic-firmware-3.5-is-here) update comes another new version of Node-RED, its 3.0 milestone release.

Get ready to see what's new in Node-RED when you update to *groov* EPIC 3.5. This new version includes all the additions of the 3.0.2 software, the most recently available at the time of writing, and node v14.20.0 and npm 6.14.17 package updates as well. Let's take a look.

[Read More](https://blog.opto22.com/optoblog/whats-new-in-node-red-v3.0)

 2 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/whats-new-in-node-red-v3.0#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)

## [Using security certificates with Opto 22 Node-RED packages](https://blog.opto22.com/optoblog/using-security-certificates-with-opto-22-node-red-packages)

 Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on May 17, 2023, 10:22:24 AM

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[![](https://blog.opto22.com/hubfs/opto-nodes-certs-thumbs.jpg)](https://blog.opto22.com/optoblog/using-security-certificates-with-opto-22-node-red-packages)

### New video shows how to access data no matter where your Node-RED server is running.

The Node-RED how-to video series continues with some tips on using certificates. Recent videos in the series covered[why you should run Node-RED](https://blog.opto22.com/optoblog/why-you-should-run-node-red-on-groov) on *groov* devices, and [how to install and configure Opto 22 Node-RED packages](https://blog.opto22.com/optoblog/watch-configuring-node-red-packages) for PAC Control, *groov* I/O and *groov* View.

Now Terry Orchard is back at the demo desk to show you how to use both self-signed and Certificate Authority certificates to help move data between *groov* RIO and EPIC, no matter where your Node-RED server is running.

[Read More](https://blog.opto22.com/optoblog/using-security-certificates-with-opto-22-node-red-packages)

 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/using-security-certificates-with-opto-22-node-red-packages#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), [developer](https://blog.opto22.com/optoblog/topic/developer)

## [RTD with RIO](https://blog.opto22.com/optoblog/rtd-with-rio)

 Posted by [Terry Orchard](https://blog.opto22.com/optoblog/author/terry-orchard) on May 4, 2023, 2:30:00 PM

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[![](https://blog.opto22.com/hubfs/groovRIOandlogo.png)](https://blog.opto22.com/optoblog/rtd-with-rio)

### Using powerful built-in software, it’s easy to add more functionality to the multifunction, mixed signal I/O on *groov* RIO, including using RTD temperature probes with minimal code.

The *groov* RIO [MM1](https://www.opto22.com/products/product-container/grv-r7-mm1001-10), [MM2](https://www.opto22.com/products/product-container/grv-r7-mm2001-10), and even the *groov* EPIC [GRV-MM1001-10](https://www.opto22.com/products/product-container/grv-mm1001-10) modules are extremely flexible, with an incredible number of software configurable options. Even with all that potential, you can do more when you combine this I/O with software tools like PAC Control, CODESYS, Node-RED, and custom Linux programs.

A great way to see this is with RTD sensors.

[Read More](https://blog.opto22.com/optoblog/rtd-with-rio)

 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/rtd-with-rio#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 RIO](https://blog.opto22.com/optoblog/topic/groov-rio), [temperature sensor](https://blog.opto22.com/optoblog/topic/temperature-sensor), [RTD](https://blog.opto22.com/optoblog/topic/rtd)

## [groov View and Node-RED](https://blog.opto22.com/optoblog/groov-view-and-node-red)

 Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on Apr 25, 2023, 12:00:00 PM

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[![](https://blog.opto22.com/hubfs/NRPackages_groovView.jpg)](https://blog.opto22.com/optoblog/groov-view-and-node-red)

### The Node-RED package video series wraps up with a closer look at *groov* View nodes.

If you've been following the OptoBlog, you've noticed we have a new series of Node-RED videos dedicated to explaining all the Opto 22 Node-RED packages available for your *groov* EPIC or RIO device. The last video in this 5-part series is now available.

Terry Orchard is back in the OptoStudio to explain [*groov* View nodes](https://www.opto22.com/support/resources-tools/videos/video-opto-22-node-red-packages-groov-view-nodes). You'll learn about Read and Write, review how the nodes are configured, and see some examples of how they can be used.

[Read More](https://blog.opto22.com/optoblog/groov-view-and-node-red)

 1 Comment [Click here to read/write comments](https://blog.opto22.com/optoblog/groov-view-and-node-red#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), [developer](https://blog.opto22.com/optoblog/topic/developer), [groov RIO](https://blog.opto22.com/optoblog/topic/groov-rio)

## [groov I/O with Node-RED](https://blog.opto22.com/optoblog/groov-i/o-with-node-red)

 Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on Apr 19, 2023, 9:36:26 AM

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[![](https://blog.opto22.com/hubfs/groovIIO_NodeRedPackage.jpg)](https://blog.opto22.com/optoblog/groov-i/o-with-node-red)

### The Opto 22 node packages for Node-RED video series continues with a focus on *groov* I/O nodes.

Get ready for another video that explains how and why to use the Node-RED programming tool on *groov* EPIC. In this new video, Terry Orchard explains the different types of *groov* I/O nodes, gives some examples of how to use them, and explains what makes them different from other nodes.

Before watching, you might want to review the Node-RED Package[Intro and Configuration](https://blog.opto22.com/optoblog/watch-configuring-node-red-packages) video. This  will provide some background on how the nodes were initially set up that are now being used in this latest I/O video.

Now, Terry has a flow ready to go with some examples that make it easy to follow along. [Watch and learn.](https://www.opto22.com/support/resources-tools/videos/video-opto-22-node-red-packages-groov-i-o-nodes)

[Read More](https://blog.opto22.com/optoblog/groov-i/o-with-node-red)

 0 Comments [Click here to read/write comments](https://blog.opto22.com/optoblog/groov-i/o-with-node-red#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), [developer](https://blog.opto22.com/optoblog/topic/developer), [groov RIO](https://blog.opto22.com/optoblog/topic/groov-rio)

## [New video: PAC Control node package](https://blog.opto22.com/optoblog/new-video-pac-control-node-package)

 Posted by [Janice Colmer](https://blog.opto22.com/optoblog/author/janice-colmer) on Apr 12, 2023, 9:30:00 AM

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### Learn how to use Node-RED with the PAC Control node; watch the next video in our new series.

Have you been watching Terry Orchard's latest Node-RED video series that explains [why you should run Node-RED](https://blog.opto22.com/optoblog/why-you-should-run-node-red-on-groov) on Opto 22 *groov* products? Last week's[OptoBlog post](https://blog.opto22.com/optoblog/watch-configuring-node-red-packages) shared how to get started with configuring the Node-RED packages so they're ready to use.

This week we move on to more details about the PAC Control node package. Watch as Terry explains in this latest video: [Opto 22 Node-RED Packages: PAC Control](https://www.opto22.com/support/resources-tools/videos/video-opto-22-node-red-packages-pac-control).

[Read More](https://blog.opto22.com/optoblog/new-video-pac-control-node-package)

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 Topics: [Node-RED](https://blog.opto22.com/optoblog/topic/node-red), [groov EPIC](https://blog.opto22.com/optoblog/topic/groov-epic), [developer](https://blog.opto22.com/optoblog/topic/developer), [groov RIO](https://blog.opto22.com/optoblog/topic/groov-rio)

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