Retrieve the maximum temperature values for each month of the year

roro50 · 17 December 2020 10:37

Hello, I am a beginner, and I am trying to memorize the temperature of my sensor (max value) for each month.
example:
January: max temp 6.5 ° c
february: max temp 12.4 °

I found the way to get the month and the temperature, but to link the 2? I appeal to you.
thank you

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        "name": "reccup mois",
        "func": "var now     = new Date(); \nvar month   = now.getMonth()+1; \nmsg.payload = month;\nmsg.topic = \"mois\"\nreturn msg;",
        "outputs": 1,
        "noerr": 0,
        "x": 310,
        "y": 80,
        "wires": [
            [
                "dc7a1b4.c9138e8"
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        "payload": "15",
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        "x": 90,
        "y": 240,
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        "type": "function",
        "z": "9a301321.5665b",
        "name": "valeurs max",
        "func": "context.data = context.data || new Object();\nswitch (msg.topic) {\n    case \"mois\":\n        context.data.mois = msg.payload;\n        msg = null;\n        break;\n    case \"valeur\":\n        context.data.valeur = msg.payload;\n        msg = null;\n        break;   \n    default:\n        msg = null;\n    \tbreak;\n}\n\nlet valeur_max;\nif(context.data.mois == 12 && context.data.valeur >= valeur_max ) {\n    valeur_max=valeur;\n    msg.payload = msgOut;\n\treturn msg;\n} \n",
        "outputs": 1,
        "noerr": 0,
        "x": 310,
        "y": 200,
        "wires": [
            [
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    },
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        "z": "9a301321.5665b",
        "name": "valeur",
        "func": "\nmsg.payload = msg.payload;\nmsg.topic = \"valeur\"\nreturn msg;",
        "outputs": 1,
        "noerr": 0,
        "x": 170,
        "y": 300,
        "wires": [
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zenofmud · 17 December 2020 11:07

Let me try to help you figure out the problem yourself. First off remove the interval in the inject node (so you don't flood the sidebar debug) then put a debug node on the output of the 'reccup mois' function node and on the output of the 'valeur' function node to make sure data is coming from both.

Next add a node.warn() in the 'valeurs max' function node after the first line. formate the node.warn like this: node.warn("context.data = "& context.data) so the first two lines are:

context.data = context.data || {};
node.warn("context.data = "& context.data)

deploy and run the your flow pressing each inject node.

What do the results tell you?

roro50 · 17 December 2020 11:12

thank you for helping me, but I have a lot of trouble understanding (I don't speak English, and I use translate)

roro50 · 17 December 2020 11:21

I'm not sure if I followed your recommendations, but on output I get "0" every second?

zenofmud · 17 December 2020 11:21

voir si cela a plus de sens (See if this makes more sense.)

First off remove the interval in the inject node (so you don't flood the sidebar debug)
Change
Screen Shot 2020-12-17 at 6.16.10 AM
to

Next put a debug node on the output of the 'reccup mois' function node and on the output of the 'valeur' function node to make sure data is coming from both.

Next add a node.warn() in the 'valeurs max' function node after the first line. formate the node.warn like this: node.warn("context.data = "& context.data) so the first two lines are:

context.data = context.data || {};
node.warn("context.data = "& context.data)

deploy and run the your flow pressing each inject node.

What do the results tell you?

roro50 · 17 December 2020 11:23

ok I redo your diagram, I will come back immediately

roro50 · 17 December 2020 11:27

if I click on time, I have output 0 and 12
if i click on 15, i have output 0 and 15

roro50 · 17 December 2020 11:31

I'm sorry, I have to go eat (I'll be back at 1:00 p.m.)

zenofmud · 17 December 2020 12:02

So the 12 and 15 are correct, but the output of the node.warn is 0.

So what do you expect context.data to be?

roro50 · 17 December 2020 12:38

I don't know, I'm lost!
if I validate that the first ms.payload (the 2 others inactivated) with 1 pulse on time.stamp I have 0 and 12 on output; if a pulse on "15" then I only have 0 in output?
I don't know what to think?

roro50 · 17 December 2020 12:40

in output of max value I always have 0 in output! either with input 15 or input time

roro50 · 17 December 2020 12:41

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        "func": "var now     = new Date(); \nvar month   = now.getMonth()+1; \nmsg.payload = month;\nmsg.topic = \"mois\"\nreturn msg;",
        "outputs": 1,
        "noerr": 0,
        "x": 230,
        "y": 100,
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        "name": "valeurs max",
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        "z": "9a301321.5665b",
        "name": "reccup mois",
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        "noerr": 0,
        "x": 190,
        "y": 300,
        "wires": [
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roro50 · 17 December 2020 13:22

I apologize, but I would like to move forward in my project. Thank you for kindly showing me the solution to my problem, but I have a lot of trouble understanding you (problem of different languages) could you give me the final solution (I don't think there is much code?) I will then try to understand the instructions and use it for similar functions. it would save me a lot of time (I am on a project and here I am at a standstill)
thank you for your understanding and above all for your help.
this is in no way a criticism or reproach towards the forum, but I am blocked

roro50 · 17 December 2020 13:34

I added "return msg;" at the end of the "max value" function, now if I click on time I have 0 and 12 and if I click on 15 I have 0 and 15.
this means, that when the "max value" function receives an information, it reads the 2 inputs but the input information is not stored (hence the value 0). I don't know how to fix it?

zenofmud · 17 December 2020 13:44

in the function node:

context.data = context.data || new Object();
switch (msg.topic) {
    case "mois":
        context.data.mois = msg.payload;
        msg = null;
        break;
    case "valeur":
        context.data.valeur = msg.payload;
        msg = null;
        break;   
    default:
        msg = null;
    	break;
}

let valeur_max;
if(context.data.mois == 12 && context.data.valeur >= valeur_max ) {
    valeur_max=valeur;
    msg.payload = msgOut;    <========== 
	return msg;
}

MsgOut n'a jamais été défini. Voulez-vous enregistrer la valeur_max la plus élevée et la mettre dans msg.payload?
qu'est-ce que valeur_max, vous ne l'avez jamais défini sur quoi que ce soit?

roro50 · 17 December 2020 13:47

I have a temperature sensor which gives me data every minute, I would like to record the max values for each month of the year.
January => 5 ° c
February => 12 ° c
for example

roro50 · 17 December 2020 13:49

hence my mini program with 2 inputs (time and a digital input) output I would like to have (12 outputs with the maximum values that I will display)

roro50 · 17 December 2020 13:50

I'm coming back in 30 minutes (I'm going to pick up my daughter from school) and I'm back.
Thanks again for your help !

zenofmud · 17 December 2020 14:13

Give me a few minutes

roro50 · 17 December 2020 14:36

hello i am

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Retrieve the maximum temperature values for each month of the year

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