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A quick demo of a simple flow to record the max and min values of wind speed for example and to display them on a dashboard along with the time recorded. You can find more information on the context variable here https://stevesnoderedguide.com/node-red-variables and https://youtu.be/kNfP1vw2Img The flow is available for download using buy me a coffee link (it doesn't cost anything) but It is a good way of staying in touch and you always buy me a coffee https://www.buymeacoffee.com/steveH5u/e/75901 alternatively direct from the site. https://stevesnoderedguide.com/download/max-min-flow