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Good morning,
I am trying to receive a long number in thingspeak and convert it to a string. However, when I receive it, it converts it to a number using scientific notation. I have tried changing the format to long g and others and was able to get rid of the scientific notation part.
After doing so, I have used commands such as num2str, mat2str, and compose to represent the number as a string, but I keep getting results that are off. An example is a message i am sending as:
field1=100630000553400000000
using an MQTT desktop client. However, when I receive it and print the result, I get:
0100630000553399992320
The numbers are close but the right one. Is there something I am missing?
Thanks in advance!
Pedro Ch.
Good morning,
I'm working with an Arduino MKR 1010 which takes information about weather from the website "api.openweathermap.org". On a ThingSpeak dashboard I displayed the main numbers (float) information like: temperature, wind speed, humidity, etc. Moreover, from the openweathermap I can also get string sentence (e.g. "light rain" or "broken clouds" etc.). I'm wondering if there is a way to display on the ThingSpeak dashboard string fields. Indeed, in the ThingSpeak Channel Settings I added an extra Field in order to store these string words but I don't know how to print them in the dashboard.
Someone can help me?
Thanks in advance,
Lorenzo
