OptoBlog

Use Swagger UI to make API calls with Node-RED

Posted by Janice Colmer on May 11, 2022 9:20:23 AM

Next up in the Node-RED videos series is a tutorial about using Swagger to help set up API calls.

In under 20 minutes, this new developer video from Terry Orchard will take you through all the steps you need to get a solid understanding of using Swagger UI pages to create API calls you can bring into Node-RED. Using them together, you can control all sorts of APIs from your groov device, both getting and posting data, using simple Node-RED.

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Topics: Videos, Node-RED, groov Manage, developer

Introduction to JSON for Node-RED

Posted by Janice Colmer on Mar 18, 2022 8:00:00 AM

New Opto 22 Developer Broadcast video makes the JSON data format easy to understand.

OptoBlog followers are most likely familiar with Terry Orchard's Node-RED video series, and he's recently added a new video to that playlist. This time, Terry's goal is to introduce you to the JSON data format, so it's easy to understand and simple to get started with.

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Topics: Videos, IoT, Node-RED, developer, json

From Raspberry Pi to Factory Floor

Posted by Ben Orchard on Jun 9, 2021 8:44:20 AM

Some developer tips for successfully moving your project from home to the plant floor.

We know a lot of developers love to tinker and prototype projects on Raspberry Pi hardware. I do the same at my house with over 12 Raspberry Pi computers doing different things. It's such an affordable and fun platform with a huge community behind it... what's not to love? The challenge comes when it’s time to move your project from the house/office to the factory floor.

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Topics: Node-RED, Raspberry Pi, groov EPIC, developer, groov RIO

Proud member of the Eclipse Foundation and Sparkplug Working Group

Posted by Janice Colmer on Apr 29, 2021 9:44:35 AM

Opto 22 recently announced it has joined the Eclipse Foundation—the Sparkplug governing body and industry collective.

As an industrial automation and internet of things (IIoT) manufacturer, Opto 22 is dedicated to educating and influencing the direction of the MQTT IoT protocol. It's an important part of the product strategy behind our groov EPIC and groov RIO product solutions. Therefore, it was a logical step to join the Eclipse open-source software community to foster further collaboration and innovation around the MQTT and Sparkplug standards.

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Topics: MQTT, groov EPIC, Sparkplug, developer, groov RIO, Inductive Automation, Cirrus Link Solutions, Eclipse Foundation

Advanced data logging in Node-RED

Posted by Janice Colmer on Mar 24, 2021 1:30:00 PM

This new Node-RED developer video shows you how to do more with your data with CSV logging and file storage.

Welcome back to the world of Node-RED. Video host Terry Orchard just completed a new episode on more advanced ways of logging your data. Rather than just logging to a text file, perhaps you want to change your data to a CSV file and save it to a USB drive on the groov RIO. This video gives you simple step-by-step instructions on how to do just that.

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Topics: Videos, Node-RED, developer, groov RIO

How to build a basic UI in Node-RED

Posted by Janice Colmer on Mar 15, 2021 11:48:48 AM

Next up in the Node-RED developer video series, this tutorial makes it easy to create your own HMI or dashboard.

When we first introduced the Node-RED developer video series a few months ago, we started off with how to "Set up groov I/O nodes." Once you've installed and configured them, it's time to do something interesting with your data.

This new video does just that. Next up in the Node-RED video series is the Basic Node-RED Dashboard UI Tutorial.

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Topics: Videos, Node-RED, groov Manage, developer, groov RIO

Learn how to log I/O data to text file in Node-RED

Posted by Janice Colmer on Mar 5, 2021 8:26:39 AM

New video released this week shows you how to turn groov RIO into a continuous datalogger

Another week means another video to add to your collection of Node-RED tools and technical tips. Last week our developer video host, Terry Orchard, demonstrated how to create Node-RED flows that interact with groov EPIC's embedded HMI server in "How to use the Node-RED package for groov View". This week, Terry is back in the studio with the groov RIO edge I/O module showing us how to save I/O data to a flat file.

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Topics: Node-RED, developer, groov RIO

How to use the Node-RED package for groov View

Posted by Janice Colmer on Feb 26, 2021 11:02:46 AM

Follow this new video to create Node-RED flows that interact with groov EPIC's embedded HMI server.

Thanks to all your positive feedback, Terry Orchard is continuing with his video series for groov EPIC and RIO users in the developer community.

Next up: How to use the Node-RED package for groov View.

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Topics: Node-RED, groov View, groov EPIC, developer

Learn the power of SSH on groov EPIC

Posted by Janice Colmer on Feb 12, 2021 8:30:00 AM

Terry Orchard is back in his studio to give you a video overview of the Secure Shell Access (SSH) feature on groov  EPIC.

Whether you're already using Opto 22's groov EPIC or have been researching its features, it's important to note the extensive programming options it comes with. You can use the easy flow chart-based PAC Control, the familiar IEC 61131-3 compliant languages of CODESYS, or build Node-RED flows to move data.

But, did you know EPIC allows you to build your own custom applications using languages you know like Python, C/C++ and run them on an open, Linux®-based operating system? That's the topic of Terry Orchard's latest video, part of the new Opto 22 Developer series.

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Topics: Videos, Security, groov EPIC, developer, secure shell, ssh

New video: What is an MQTT broker?

Posted by Janice Colmer on Mar 8, 2019 8:23:27 AM

This latest video in our Automation 101 series provides a deeper dive and explanation of the MQTT central server, or the "broker".

As you recall from previous posts, the industrial MQTT communication protocol is a powerful tool that allows you to exchange device data freely among devices and applications, with little or no IT involvement. Its simplicity and flexibility make it a popular choice for today's IIoT applications.

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Topics: Videos, IIoT, Industrial Internet of Things, MQTT, groov EPIC, developer

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