Node-RED for groov Box (GROOV-AR1) has been updated to include the recently released 0.17.4 version of Node-RED. It includes a better Debug panel, improved JSON editing, changes to Split and Join nodes, the ability to disable a node, and more.
For more information, please see:
To update a groov Box, visit manage.groov.com and download the R4 update for Node-RED. The README there has instructions on how to apply the update.
We’ve posted a new Node-RED example that shows how to read and write to G4 digital I/O.
We’ve also redesigned the code sample pages for use with Raspberry Pi—check it out!
Check out our new Node-RED examples:
- Get WAN IP Address—A one-step method to get a controller’s WAN IP address and write it to a tag in PAC Control
- Using Conditions in a Flow (Switch Node)—An interactive example that uses a switch node to turn a lamp off and on
groov mobile operator interface users can monitor and control all kinds of sensors and equipment in the physical world. Now they can also interact with data from an online service, a database, or another software application.
The data is held in a groov Data Store, and the groov Data Store RESTful API gives you access to it.
Need help building a Node-RED app that uses a headless Raspberry Pi connected to industrial digital I/O?
Check out Benson H’s latest OptoBlog for step-by-step instructions.
We’ve posted a C# code sample that uses the SNAP PAC REST API to read a point on a demo controller.
The sample also shows how to authenticate to the API.
We’re very pleased to announce the availability of Node-RED nodes for communicating with groov.
Node-RED is a “tool for wiring together hardware devices, APIs and online services in new and interesting ways.”
The groov nodes make use of the new groov Data Store device and API available in groov 3.3.
For more information, visit the Node-RED for groov section of the Opto 22 Developer site.
Opto 22’s Digital I/O System for Raspberry Pi lets you use a Raspberry Pi to switch real-world electrical loads like industrial motors and pumps, and sense status through industrial-grade sensors.
It’s ideal for prototypes, proofs of concept, and environments in which an industrially hardened controller is not required. You can use your favorite Pi-supported programming language and choose from a wide variety of digital I/O modules to fit what you want to do.
For more information, see the Raspberry Pi section of developer.opto22.com.
Raspberry Pi is a trademark of the Raspberry Pi Foundation.
We’ve posted code samples and instructions for using the SNAP PAC REST API and T-SQL to import tag values from a controller into a SQL Server 2016 database.
The instructions also explain how you can get Microsoft’s free developer version of SQL Server 2016.
The code sample is available at http://developer.opto22.com/rest/pac/examples/use-openjson-to-insert-tag-values/
The Node-RED for SNAP PAC nodes have been updated to v1.0.1.
From the changelog:
- Read node:
- Added option to specify on which
msgproperty that the response will be placed.
- Added option to allow the topic to be set within the Read node.
- Added option to specify on which
- Read and Write nodes:
- SSL certificate files can now be specified by just a filename, not only a full path. If using just a filename, it will load from a directory named ‘certs’ inside the Node-RED user’s directory. For example, /home/user/.node-red/certs/filename.crt.
- Added a timeout of 30 seconds. This affects the nodes once they’re connected to the PAC.
See more posts from the News Archive.