In a recent developer survey conducted by the Eclipse IoT Working Group, IEEE IoT, and Agile IoT, 40.8% of respondents indicated the Internet of Things (IoT) solutions they were either currently building or planning to build were IoT platforms or IoT middleware.
Almost every large IT or OT company today has some form of IoT platform or middleware, with the current number of self-described IoT platforms exceeding 150.
Topics: groov, Remote monitoring, Tips, IoT, Networking, IIoT, Node-RED, Data acquisition
Did you miss any of these technical tips?
Now's a good time to review some automation basics—and look ahead to new technologies in our field.
Accuracy and resolution. Specifications for both of these are included for our analog modules. What's the difference?
Sinking and sourcing. What do these terms mean when you're wiring digital DC outputs, and which is the better way to wire? Lots of questions and answers on this one.
Topics: Discrete control, Tips, optonews, I/O, SSRs, Node-RED, OptoNews 2017-01-04, Raspberry Pi, Digital I/O for Raspberry Pi
It's true: you can use your Raspberry Pi to monitor and control real-world industrial devices.
Reliable Opto 22 G4 digital I/O and SNAP digital I/O now work with your Pi.
One of the simplest ways to program your Pi may be Node-RED, designed by IBM Emerging Technologies.
Topics: Discrete control, optonews, I/O, Node-RED, G4 I/O, OptoNews 2016-12-14, Raspberry Pi, Digital I/O for Raspberry Pi
UPDATE: This post has been updated to reflect changes in the most recent Raspbian Jessie Lite image (no longer includes Node-RED or node.js) and to use the new Digital I/O for Raspberry Pi Starter Kit for I/O hardware (new code, photos, and video).
The Raspberry Pi® is an unquestionably powerful computer for just $35. And it really is just that: a computer. That means the Pi is capable of many tasks and perfect for many automation applications.
Couple the Pi to industrial, solid-state digital inputs and outputs, and you can build compelling and cost-effective solutions for commercial and industrial applications, too.
One of the easiest and fun ways to quickly build software applications is with Node-RED, the free, open-source software tool designed by IBM Emerging Technologies and used for wiring together hardware devices, APIs, and online services in new and interesting ways.
However, Node-RED is only included in the full PIXEL GUI version of the Raspbian Jessie Operating System, available from raspberrypi.org. Their latest 2017-07-05-raspbian-jessie-lite.img build for headless operation (no monitor, keyboard, or mouse required) is no longer bundled with either Node-RED or the required software tools node.js and npm.
The purpose of this post is to guide you through creating a headless Raspberry Pi computer with the latest versions of Node-RED, node.js, and npm, building a Node-RED application, and controlling and sensing GPIO connected to industrial digital I/O, quickly and simply. (For a sneak peek at the result of this build, see the video near the end of this post.)
Image: New Opto 22 Digital I/O for Raspberry Pi Starter Kit with Raspberry Pi 3 Computer
Topics: Node-RED, GPIO, G4 I/O, Raspberry Pi, Digital I/O for Raspberry Pi
Are you wiring together devices and software using Node-RED? If you're even thinking about it, we've got a new Node-RED OptoForum for you.
We announced in the last OptoNews that Node-RED is now a built-in feature in the GROOV-AR1 groov Box!
Topics: groov, Internet of Things, IoT, optonews, IIoT, Industrial Internet of Things, Node-RED, OptoNews 2016-11-09
Just released! A major new tool for your Industrial Internet of Things (IIoT) project: the groov Box with Node-RED built in.
What is Node-RED?
It's an open-source, cross-platform tool for wiring together hardware devices, databases, cloud services, and APIs (application program interfaces) with simple logic flows.
Topics: groov, Internet of Things, Updates, IoT, optonews, PACs, mobile, IIoT, Industrial Internet of Things, OptoNews 2016-10-26, Node-RED
Node-RED is now included in the GROOV-AR1 groov Box!
But what exactly is Node-RED, and why is that useful to you?
Topics: Internet of Things, IoT, optonews, IIoT, Industrial Internet of Things, OptoNews 2016-10-26, Node-RED