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Is Thingspeak tracking the device IP address?
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Angmo
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July 27, 2017 - 2:45 am
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I created 3 thingspeak account for my project. 3Arduino was used to collect the data and the data collected was sent to arduino D. Each arduino was assigned to different thingspeak account. The program at arduino D will differentiate the data is from which arduino and then upload to the respective thingspeak account every 15second. However, i realized something strange. After arduino A upload to the respective thingspeak account, within the 15second interval that is limit by the free thingspeak account, no data is uploaded by arduino b and arduino c. Because i used the same arduino ( arduino D) to upload the data so i doubt that is thingspeak tracking the IP address of the device that used to upload to thingspeak and set a limit of 15second interval? 

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Hans
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July 27, 2017 - 11:28 am
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The situation that you are describing should work properly. Check to make sure that the Write API Key is unique for each device. You can also accomplish the same goal with one account and three channels.

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Vinod

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July 28, 2017 - 7:32 pm
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This is a common situation where code on the Arduino is writing each field individually, instead of setting each field and writing all fields in a single shot. Take a look at this example to see how to write multiple fields in a single shot:

https://github.com/mathworks/thingspeak-arduino/blob/master/examples/WriteMultipleVoltages/WriteMultipleVoltages.ino

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