i want to write a function to display heat index from temp and humidity from a sensor. I just don't know how to format the function to use the NWS equation any help? i can display the temp and humidity in the dashboard but i want to display the heat index as well. Ron

because I am a" NEW USER" the forum kicked me off last night, said to wait 6 hours so Here is the error I get in the debug window. I have two debugs set up 1 is the data I am putting in to the fuction. 2 is the function output. You can see I am gettig two temp reading and two humidity readings, …

This is the function as of now. var T = msg.payload; var H = msg.payload; node.warn(["T",T, typeof T]); node.warn(["H",H, typeof H]); var HI = -42.379 + 2.04901523*T + 10.14333127*H - .22475541*T*H - .00683783*T*T - .05481717*H*H + .00122874*T*T*H + .00085282*T*H*H - .00000199*T*T*H*H; msg.payload …

This is the flow I think?.. [{"id":"ddb60bf6.ecbe98","type":"tab","label":"sht30","disabled":false,"info":""},{"id":"795c8109.f4c5c","type":"mqtt in","z":"ddb60bf6.ecbe98","name":"","topic":"sht30temp","qos":"2","datatype":"json","broker":"f59c9fa3.bd9ea","x":60,"y":120,"wires":[["501656f8.157128",…

It doesn’t look like your sensor is returning a temperature or at least a msg that identifies a reading as a temperature. How are you reading the sensor? P.s. I had to edit your last post because you had your text as part of the code P.p.s. It looks like your flow is issuing the exact same http r…

It doesn’t look like your sensor is returning a temperature or at least a msg that identifies a reading as a temperature. If you look at the debug #1 it shows the temp as 84.45502 and the humidity as 53.32265 What is wrong with that? you also ask " P.p.s. It looks like your flow is issuing the …

Oops my mistake, I imported your flow but looked at a flow I inserted while looking at another thread. So the data is coming from an mqtt node. What is publishing the the data and how is it identifying that the msg is sending a temperature or a humidity? Also, you are sending every msg to both t…

I am looking at the data from the two change node so yes that is why I see 2 times. If i look at the data from the sht30temp node the mqtt reciver I can't get it to display anything below is a debug of the output of the mqtt node 7/23/2021, 8:03:23 PM node: ea9eef94.21b9f sht30temp : msg : Object …

yes you are correct saying "If you control the content/topics " but I don't know how. Ronbu

Here is what is happening. A msg arrives from the mqtt-in node which is connected to two change nodes. This cause the msg to be cloned so now two msgs are passing thru the flows. One change node causes msg.payload to be set to msg.payload.fTemp while the other causes msg.payload to be set to msg.pa…

WOW that sounds like it may work I will try both suggestions. I'll let you know. Thank you Ronbu.

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Paul-Reed 25 July 2021 10:12 35

Need I say more Ron...

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