I habe installed an official image of Industrial OS 2.1 with NodeRed 1.0.3. Unfortunately no GPIO nodes are available.

How kan I add the GPIO nodes in NodeRed Industrial OS?

Just my 2-cents:
I have it working charmingly well with the example image... 

apt list node-red

 shows version 1.2.7 on arm64

Edit:

How come you have IndustrialOS Version 2.1 for IOT2050 available?

As far as I see it in SIOS there is no such thing for IOT2050 readily available as an official product.

Hello Bergmanu,

bergmanu

Hi, 

currently there is no possibility to use the GPIO nodes with Industrial OS. 

I already created a requirement to the developers of the Industrial OS to integrate them. 

Best regards!

 Is there an update to this? Is there a possibility to add the GPIO Nodes to Node-Red, with the Industrial OS 2.2?

Hello Bergmanu,

this sounds good. Thank you.

Best regards 

Best Regards

Hi all,

We have extracted the source files of the NodeRED module from the example image. The folder with the files is attached and we refer here to the following versions of the software used under version 2.2.0 of the SIMATIC Industrial OS.

mraa-gpio version

Version v2.0.0 on SIMATIC IOT2050

nodejs -v

v10.24.0

node-red

v1.0.3

Now transfer the folder "node-red-node-intel-gpio" to the IOT2050 to a location of your choice.In the following command line instructions, the folder is located in the home directory. Check at this point that no instance of NodeRED is currently running.

Get into your source folder and connect it to your directory for libraries for programming and packages:

cd node-red-node-intel-gpio

sudo npm link

Expected sample output:

/usr/lib/node_modules/node-red-node-intel-gpio -> /home/node-red-node-intel-gpio/node-red-node-intel-gpio

Now head to NodeREDs source folder and extend the made link by connecting it now with the newly added module:

cd ~/.node-red

sudo npm link node-red-node-intel-gpio

Expected sample output:

/root/.node-red/node_modules/node-red-node-intel-gpio -> /usr/lib/node_modules/node-red-node-intel-gpio -> /home/node-red-node-intel-gpio/

We now have to create a similar link for mraa and the new module by enabling an integration of the library with the following commands:

cd /usr/lib/node_modules/mraa

sudo npm install

sudo npm link

cd /home/node-red-node-intel-gpio

sudo npm link mraa

Expected sample output as shown above.

Let’s start NodeRED: if you start it in your autostart routine anyway, a reboot of your IOT2050 is sufficient at this point. Navigate to the editor in a browser and validate the newly added modules.

With the following demo flow you can check the function of the mraa implementation in your NodeRED. Here the user LED is addressed and made to blink with a frequency of 1Hz.

[{"id":"a3481e7c.44e92","type":"tab","label":"Flow 1","disabled":false,"info":""},{"id":"1c71fc18.eb9044","type":"mraa-gpio-led","z":"a3481e7c.44e92","name":"","pin":"3","x":410,"y":260,"wires":[]},{"id":"5094a5b4.07224c","type":"inject","z":"a3481e7c.44e92","name":"","props":[{"p":"payload"}],"repeat":"0.5","crontab":"","once":false,"onceDelay":"0.5","topic":"","payload":"1","payloadType":"num","x":120,"y":260,"wires":[["ab0b0e63.19a7c"]]},{"id":"ab0b0e63.19a7c","type":"function","z":"a3481e7c.44e92","name":"","func":"msg.payload = context.get(\"alternate\") || 0;\nmsg.payload = (msg.payload +1)%2;\ncontext.set(\"alternate\", msg.payload);\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","x":260,"y":260,"wires":[["1c71fc18.eb9044"]]}]

Kind regards