How to recieve data from my channel through sim800 and turn ON relay

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Johnson Isaac
Johnson Isaac 2020-4-23
回答： David Stacer 2020-4-26
Pls I need help to read my channel field last value (1 or 0) and in turn switch on a relay connected to my arduino pin using sim800l. I don't know how to go about the code for it. Anyone with a link to an example or a guide pls. My channel field is been updated with a "1" or "0" from my mit app inventor mobile app. In return I want to turn on a relay on/off when this field is updated by using sim800l to be checking the field last value

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David Stacer
David Stacer 2020-4-26
The read data from channel api should help you.
https://www.mathworks.com/help/thingspeak/read-data-from-channel.html

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