Sample and old the highest value in a Node Red flow
I cant believe something like this is not built into Node red. I want to see the highest value a sensor reads, specifically I want to see how hot it actually gets in my attic. Mostly because I need to do some calculations for wire loading and temperatures for an EV charger. I need to run the wires through the attic and you have limits to the wires insulation temperatures. a LOT of people never think of this stuff, heck many electricians dont. But running a wire at 80% capacity for 3-8 hours can generate significant heat. Estimate about a 10-20C rise in temperature just from the power run through it. in the wall in an airconditioned home, that rise is nothing. in a 140F attic, that is a problem. at that temp the wire under load will hit 185F Still under the 194F insulation rating for THHN, but too close for my comfort. so I need to do data gathering. // Initialize flow variable for the highest value if it...
