Question 1

How do I install a specific node from the Node-RED nodes collection?

Accepted Answer

Use the Node-RED editor's 'Manage Palette' option or run 'npm install node-red-node-{name}' in your Node-RED user directory (e.g., 'npm install node-red-node-arduino'). The README details both methods for easy setup.

Question 2

Node-RED nodes vs custom nodes: which should I use for my project?

Accepted Answer

Use Node-RED nodes for common integrations to save time, but opt for custom nodes if you need unique logic, better performance, or tighter security control. Assess based on node availability and your specific requirements.

Question 3

Why is the Twitter node in Node-RED not working?

Accepted Answer

The README warns that the Twitter node will break soon when Twitter removes their streaming API. You may need to update the node, use an alternative service, or switch to a different integration method.

Question 4

How can I contribute a new node to the Node-RED nodes repository?

Accepted Answer

Package your node via npm following Node-RED's packaging guide, then submit it for review. The README links to contribution guidelines, but note that the project now encourages direct npm publishing over pull requests to this repo.

Question 5

What are the security risks of using the MySQL node in Node-RED?

Accepted Answer

The MySQL node allows SQL injection, as noted in the README. Sanitize all inputs, use parameterized queries if possible, and restrict database permissions to mitigate risks in production environments.

Question 6

Can Node-RED nodes handle industrial protocols like Modbus?

Accepted Answer

This collection lacks nodes for Modbus or OPC UA; you'll need to search for third-party nodes or develop custom ones. It focuses on general-purpose hardware, I/O, and social integrations rather than industrial-specific protocols.

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