Data not displaying on graph (field chart 1 and field chart 2)

Project to code and monitor 2 co2 sensor and to display it on to a LCD as well as connecting it to thinkspeak to display readings on to the field chart 1 and 2.

When i ran my code it shows Data sent to thinkspeak etc but when i go to thinkspeak it does not display it on the field chart 1 and 2 however there is entires and i can also export the data that i have recorded on my sensors.

What may be the issue i hope to get some help thanks.

Channel ID to public: 2816578

[Christopher Stapels]

You may be sending data that is not undestood by thingspeak to be a number. I would export recnet data to see what the format of the ingested data is. Perhpas you are including spaces or quotes or other characted so ThingSpeak cannot plot it. also make sure the fields are enables in the channel settings tab of your channel view.

Answer 1

[Anudeep Kumar]

Hey Huang,

Assuming you are using function “webwrite”, you can probably try enabling “Show Status” checkbox on the channel setting page.

I believe this is a similar issue to one of the MATLAB Answer I found, whose link I have attached below:

https://in.mathworks.com/matlabcentral/answers/396717-thingspeak-channel-status-update-field?s_tid=answers_rc1-3_p3_Topic

If you are using “thingSpeakWrite” I believe the status can be used using:

http://api.thingspeak.com/update?api_key=MyKey&status=good

This MATLAB Answer link discusses the same:

https://in.mathworks.com/matlabcentral/answers/2075991-thingspeakwrite-where-is-the-channel-status?s_tid=answers_rc1-2_p2_MLT

I hope this is helpful!