Hi I want to write a node with a node.js library. but the js library must run in "root mode". Can i include ths library into node-red ? How to if i can do it ? :thinking:

when i run with node.js. I must be root(sudo node xxxx). [image] fivdi/pigpio Fast GPIO, PWM, servo control, state change notification and interrupt handling with Node.js on the Raspberry Pi - fivdi/pigpio

You should not need to be root to use that, you need to make sure that the node red user has access to the hardware. Are you getting an error when you use it?

I forgot if there is any message. I will try again. I need sudo command when i use node calling it and it can access GPIO.

[image] dceejay: the docs say you need to be root OK, I missed that. But whatever they say, provided the user has access to the hardware or appropriate directories, I would not have expected a problem. Unless the code has a specific check on root which would be a bit odd. Perhaps there is so…

See this response from the author fivdi ... "Sorry, you don't have permission to run this program." opened 02:49PM - 11 Dec 15 UTC (UTC) closed 02:24PM - 12 Dec 15 UTC (UTC) [s…

That's poor, unless there really is a reason for it.

You can run Node-RED as root user so I'd suggest doing that and then try building the simple node as root user and see if that works https://nodered.org/docs/creating-nodes/first-node if it does, and I don't see why it shouldn't, then you should be fine to make your node. Obviously, your node wil…

Yes, I can use pi-gpiod. I want to drive GPIO directly. because i want to use SPI. :joy:

Node-RED

Node-RED Forum

Running Node.js need be root

General

dceejay 7 September 2020 07:04 5

@colin. Actually the docs say you need to be root. That is the reason I dont use it for the default gpio nodes. We do have the pigpiod version node that uses a network connection to the pigpio daemon (that does run as root)

Topic		Replies	Views
Exec node as root? General	8	3917	25 January 2021
In node-red how to read gpio from dell gateway 3001 General	12	1316	3 March 2019
Run nodes with root privileges General	11	4515	4 March 2019
Node-red running on root issues General	6	4842	14 September 2018
Raspberry Pi and GPIO General	7	3851	21 March 2019

Copyright OpenJS Foundation and Node-RED contributors. All rights reserved. The OpenJS Foundation has registered trademarks and uses trademarks. For a list of trademarks of the OpenJS Foundation, please see our Trademark Policy and Trademark List. Trademarks and logos not indicated on the list of OpenJS Foundation trademarks are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.

Running Node.js need be root

Related topics