Error -304 in writeFields()

Error -304 in writeFields()

January 31, 2020
5:08 am

fmarzocca

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July 24, 2018

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Hi,

I am sending environmental data (float) once every 30 minutes from a NodeMCU, so the speed rate is low. Since a couple of months I am experiencing 3-5 errors a day, returning code -304 (Timeout waiting for server to respond).

I am sending data with this code (very straight-forward):

ThingSpeak.setField( 1, t );
ThingSpeak.setField( 2, h );
ThingSpeak.setField( 3, p );
ThingSpeak.setField( 4, vdd );

int writeSuccess = ThingSpeak.writeFields( myChannelNumber, myWriteAPIKey );

How can I improve communication?

February 4, 2020
3:53 pm

cstapels

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March 7, 2017

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This usually means you have lost the WiFi connection temporarily. You could consider relocating the device or using a larger antenna.

FYI, MATLAB answers is now the preferred location for ThingSpeak Community support.

February 7, 2020
9:08 am

fmarzocca

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July 24, 2018

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cstapels said

FYI, MATLAB answers is now the preferred location for ThingSpeak Community support.

Thank you, I'll switch there.

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