I am unable to access data from field which contains the array of values with error as Not a Number(NaN). These values were stored in a buffer before sending as the website can be accessed only once in 15 mins. Do I have to follow any specific method to send data from my RaspberryPi ( using Python) while using buffer values (stored values)?
Attached the screenshot of the values received by ThingSpeak ( CSV file). Is there any way to send multiple values to a field by accessing it once in 15 seconds.
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