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| Name | Storing data into variables | Node-RED Essentials | Tutorial |
| Video Uploader | Video From Let's Automate |
| Upload Date | This Video Uploaded At 19-08-2023 09:00:12 |
| Video Discription | Working with contexts, flow and global variables in Node-RED is a valuable skill when building complex automations. Using JSON and JavaScript makes it a fairly intuitive experience in Node-RED. I show you examples using the Change Node and the Function Node; these are both very useful nodes. Check out my video on the Function Node: https://youtu.be/mXVcxXI0jM0 Useful Links: Contexts: https://nodered.org/docs/user-guide/context Writing Functions: https://nodered.org/docs/user-guide/writing-functions My Node-RED playlist: https://youtube.com/playlist?list=PL79iw4ttpsPfZ_fF3vjMmXmY-Rb_d-A3P 00:00 Intro 00:42 Change Node - Setting string variables 03:11 Change Node - JSON Strings & JS Objects 04:56 - Saving variables across Node-RED restarts 06:46 Change Node - Clearing / removing variables 07:33 Global Variable example with Home Assistant entity 08:58 Function Node - Storing and retrieving from variables 11:20 Local / Node context - Accessing data just within a node 12:42 Outro #nodered |
| Category | Science & Technology |
| Tags | node red | nodered | variables | node red variables | node red context |
