Node-RED: Difference between revisions
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== Install the package == | == Install the package == | ||
Download '''LLSymbols_Node-RED.zip''' from | Download '''LLSymbols_Node-RED.zip''' from [https://www.axelsoftware.it/it/download here] and extract the content wherever you want on your device. | ||
Open up a terminal and change the directory path to the folder where Node-RED has been installed. | Open up a terminal and change the directory path to the folder where Node-RED has been installed. | ||
After that you can add the package by using the npm command shown below. Be careful to specify the full path that points to the main folder of the package | After that you can add the package by using the npm command shown below. Be careful to specify the full path that points to the main folder of the downloaded package. | ||
<pre style="color: red"> | <pre style="color: red"> | ||
cd / | cd /YOUR_PATH_TO/.node-red | ||
sudo npm install | sudo npm install YOUR_PATH_TO/LLSymbols_Node-RED | ||
</pre> | </pre> | ||
Revision as of 08:33, 19 June 2018
This wiki document explains how to install the package that contains the following modules:
- GetTagValue
- SetTagValue
These nodes interact with LogicLab and their aim is to, respectively, read/write a value for a requested symbol target.
Requirements
In order to make this package work, you have to install the JavaScript runtime Node.js, the package manager npm and Node-RED. The package manager is usually provided along with the Node.js installer, however you should make sure that both the versions you got are still supported by Node-RED.
Install Node.js
- Windows:
Follow the link below:
download Node.js
- Linux:
Open up a terminal and execute the following commands:
sudo apt-get update sudo apt-get install nodejs
Further information can be found here.
Check the npm version
The package manager npm is usually distributed along with Node.js. You can check both the versions of Node.js and npm you got with:
node -v npm -v
If npm didn't get added with Node.js, you can manually install it with the following command:
sudo apt-get install npm
After that, follow this link to make sure that the versions you got are still supported by Node-RED. If not, you can manually update npm to its latest version with:
npm install npm@latest -g
On the other side, if you have an old version of Node.js, you have to install a newer release.
Further information can be found here.
Note: The package has been developed and tested with v8.11.1 of Node.js and v5.6.0 of npm.
Install Node-RED
You can install Node-RED using the following npm command:
sudo npm install -g --unsafe-perm node-red
Further information can be found here.
Install the package
Download LLSymbols_Node-RED.zip from here and extract the content wherever you want on your device. Open up a terminal and change the directory path to the folder where Node-RED has been installed. After that you can add the package by using the npm command shown below. Be careful to specify the full path that points to the main folder of the downloaded package.
cd /YOUR_PATH_TO/.node-red sudo npm install YOUR_PATH_TO/LLSymbols_Node-RED
Running
Now you can finally use the modules (nodes) of the package by starting Node-RED with the following command:
node-red start