Can't send data from my ESP32 to ThingSpeak

Can't send data from my ESP32 to ThingSpeak

September 3, 2019
12:26 pm

avieliyahu

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September 3, 2019

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Hey!
I used the demonstration code here: https://www.mathworks.com/help/thingspeak/measure-arduino-wifi-signal-strength-with-esp32.html
Instead of an internal button and LED, I used external ones (I changed the variables accordingly).
I also wrote my own SSID and password and wrote my own API Write key.
For some reason, the graphs in the ThingSpeak aren't being updated, even though the code works (I can see it thanks to the LED turning on and off).
Is there anything which I'm missing here?
Here's a link to my code: https://github.com/avieliyahu/ESP32-ThingSpeak/blob/master/sketch_sep03b.ino

Edit: BTW I really don't understand all the HTTP connections and all, so if someone can post a link to a video or a website that explains it, it could help me a lot.

September 5, 2019
10:22 am

cstapels

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March 7, 2017

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Do you see the number of entries increase on your channel or does the number stay constant?

What do you see on the serial monitor?

There is now a built in example for ESP32 with the ThingSpeak Communication Library, you can download the library with examples here:
https://github.com/mathworks/thingspeak-arduino

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