Yes, but instead of storing it to RAM, you could save it to the filesystem (disk). If you did so, it initially saves the data to RAM, and then flushes to disk every 30 seconds.
The 30 seconds is set by default, although it can be changed, 1 minute, 5 minutes etc.
Have you searched the flow catalogue?
node-red-contrib-linux-memory
node-red-contrib-os
node-red-contrib-device-stats
just to name a couple.
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.
The OpenJS Foundation | Terms of Use | Privacy Policy | OpenJS Foundation Bylaws | Trademark Policy | Trademark List | Cookie Policy