The Industrial Raspberry Pi Forum

Posted: **22 Nov 2024, 12:09**

Hi,

Recently upgraded a device to bookworm, node-red appears to now be running with limited priveleges which is great. However I can't seem to run piTest commands properly from node-red. Do I need to give access to the nodered user? I do get a return when running piTest -d, however not the return expected. Output from terminal

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Found 2 devices:

Address: 0 module type: 105 (0x69) RevPi Connect V1.0
Module is present
     input offset: 113 length: 6
    output offset: 119 length: 5

Address: 31 module type: 97 (0x61) RevPi DI V1.5
Module is present
     input offset: 0 length: 70
    output offset: 70 length: 18

Output from node-red

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Cannot retrieve device list: No such device

Posted: **22 Nov 2024, 12:21**

Hi!

In addition to Node-RED, the piControl device has also been improved in security. Only users of the group "picontrol" may access the process image via piTest, for example. However, you can easily change this for the user "nodered".

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# Add user nodered to group picontrol
sudo usermod -a -G picontrol nodered

# Restart Node-RED
pi@RevPi94373:~$ sudo systemctl restart nodered

That's all. Now you can use piTest again in the Exec node of Node-RED.

Sven

Posted: **22 Nov 2024, 12:27**

Awesome, thanks alot for the rapid response! Works perfectly

The Industrial Raspberry Pi Forum

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