ThingSpeak

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I am using multiple sesnors and their readings are monitored in a thingspeak channel. I need to fetch and visualise these data live on a some gauges and lamp indicators to change color when a specified threshold is exceeded.

I want to get the date of the oldest data in any one of the field of ThingSpeak. I checked for different MATLAB documents but I could not find the soluction that I want.

I am confused and don't know what is the code to clear just one chosen (for example: field 5) field in a channel of ThingSpeak. I checked the MATLAB document "Clear channel" but it seems it is clearing all data in the channel instead of specific one field. Any suggestions would be very much appreciated. Thank you!

Using windspeedexample, I created an app to read data from selected public Thingspeak channel and use it to plot. I also wanted to add a table to store currently read records, which works, but has one significant problem - data in the table is getting rewritten in the first row. How do I make it so that every new input creates new row? App is in the attachments in .mlapp form. Sorry for the language, it's in polish but every input is filled so you can see what is going on. If there is no data logging, change channel ID (upper input) to 12397, dropdown to position 2, time intervals (lower position) to 5.

Hi, I am planning to develop an IOT project in which I control my hardware through an android application. For that, I would have to connect my android application to thing speak server, subscribe and publish data through MQTT api etc. Is there any tutorial following which I could achieve this or is it even possible to create such a connection on Thing speak platform?

I am getting this error warning when attempting to compile an app that needs the ThingSpeak Toolbox Support add on in order to properly function: "P files can not be analyzed to find their required fields. Please add P file requirements manually." For context, I have a sensor updating ThingSpeak and my app generates a report based off of the data in ThingSpeak. The app works perfect when in the normal MatLab window but when I exported it into an executable file, the report is never generated. I did some research and concluded I needed to add the ThingSpeak Toolbox Support add on to fix this but I have no idea hwo to "add P file requirements manually." The only command I need to give the app access to is ThingSpeakRead. I am making this in App Designer. Thanks in advance