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6:00 pm
June 17, 2020
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hi, I read temperature data from my channel with this code;
long temp = ThingSpeak.readLongField(counterChannelNumber, FieldNumber1, myCounterReadAPIKey);
The result in my chart of n the portal is “16,7” but the result from my code is “16” although I expect from “readLongField” the “long” version and not the integer version.
What and where does something go wrong?
7:59 am
MathWorks
May 1, 2016
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I believe it is the separator being used -- 16,7 instead of 16.7
5:07 pm
June 17, 2020
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Thanks Vinod, you triggered my thoughts and I found another function.
I am using ThingSpeak.readFloatField now and get “16.70” as result.
Documentation:
https://github.com/mathworks/thingspeak-arduino/blob/master/README.md
To get rid of the trailing digit I used this code;
tempKelderStr.concat(tempKelder); // float to string
tempKelderStr.remove(tempKelderStr.length() - 1, 1); //remove trailing digit
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