MATLAB: ThingSpeak don’t update channel automatic

Question

Hello, in a ThingSpeak channel, I am reading every one second the information of two current signals (I have the licensed application).

I currently have a MATLAB Analysis routine that adds those two signals and writes, on the same channel, the result of that sum. In the routine I can check that effectively if the sum of the two channels is being done.

I do that now with a good result but my problem is that the channel is not updated except when I run MATLAB Analysis.

How can I make the channel automatically update every second?

——————————————————————————-

This is my routine:

readChannelID = 123;
readAPIKey = 'XXX';
writeChannelID = 123;
writeAPIKey = 'YYY';
%%%%%%%%%%%%%%%%%%%%%%  CALCULO DE CORRIENTE  %%%%%%%%%%%%%%%%%%%%%%  
[Cte1, timeStamp] = thingSpeakRead(readChannelID,'Fields',1,'numPoints', 2, 'ReadKey', readAPIKey);
anyMissingValues = sum(isnan(Cte1));
if sum(anyMissingValues) > 0
    missingValueIndex = find(~sum(isnan(Cte1),2));
    cleanCte1 = Cte1(missingValueIndex, :);
    cleanTimeStamps = timeStamp(missingValueIndex);
else
    cleanCte1 = Cte1;
    cleanTimeStamps = timeStamp;
end
[Cte2, timeStamp] = thingSpeakRead(readChannelID,'Fields',4,'numPoints', 2, 'ReadKey', readAPIKey);
anyMissingValues = sum(isnan(Cte2));
if sum(anyMissingValues) > 0
    missingValueIndex = find(~sum(isnan(Cte2),2));
    cleanCte2 = Cte2(missingValueIndex, :);
    cleanTimeStamps = timeStamp(missingValueIndex);
else
    cleanCte2 = Cte2;
    cleanTimeStamps = timeStamp;
end
Corriente = round([cleanCte1 + cleanCte2],1);
display (Corriente, 'Corriente')
%%%%%%%%%%%%%%%%%%%%%%  VOLTAJE  %%%%%%%%%%%%%%%%%%%%%%  
[Voltaje, timeStamp] = thingSpeakRead(readChannelID,'Fields',2,'numPoints', 2, 'ReadKey', readAPIKey);
anyMissingValues = sum(isnan(Voltaje));
if sum(anyMissingValues) > 0
    missingValueIndex = find(~sum(isnan(Voltaje),2));
    cleanVoltaje = Voltaje(missingValueIndex, :);
    cleanTimeStamps = timeStamp(missingValueIndex);
else
    cleanVoltaje = Voltaje;
    cleanTimeStamps = timeStamp;
end
display (cleanVoltaje, 'Voltaje')
%%%%%%%%%%%%%%%%%%%%%%  CALCULO DE POTENCIA  %%%%%%%%%%%%%%%%%%%%%%  
Potencia = round([Corriente * cleanVoltaje],0)
%%%%%%%%%%%%%%%%%%%%%%  CALCULO DE ENERGIA  %%%%%%%%%%%%%%%%%%%%%%  
[Energia1, timeStamp] = thingSpeakRead(readChannelID,'Fields',3,'numPoints', 2, 'ReadKey', readAPIKey);
anyMissingValues = sum(isnan(Energia1));
if sum(anyMissingValues) > 0
    missingValueIndex = find(~sum(isnan(Energia1),2));
    cleanEnergia1 = Energia1(missingValueIndex, :);
    cleanTimeStamps = timeStamp(missingValueIndex);
else
    cleanEnergia1 = Energia1;
    cleanTimeStamps = timeStamp;
end
[Energia2, timeStamp] = thingSpeakRead(readChannelID,'Fields',5,'numPoints', 2, 'ReadKey', readAPIKey);
anyMissingValues = sum(isnan(Energia2));
if sum(anyMissingValues) > 0
    missingValueIndex = find(~sum(isnan(Energia2),2));
    cleanEnergia2 = Energia2(missingValueIndex, :);
    cleanTimeStamps = timeStamp(missingValueIndex);
else
    cleanEnergia2 = Energia2;
    cleanTimeStamps = timeStamp;
end
Energia = [cleanEnergia1 + cleanEnergia2];
display (Energia, 'Energia')
%%%%%%%%%%%%%%%%% Write the results in fields 6, 7 and 8 of the same channel %%%%%%%%%%%%%%%%%%%%    
thingSpeakWrite(writeChannelID, 'Fields', [6,7,8], 'Values',...
    [Corriente, Potencia, Energia],'WriteKey',writeAPIKey);

OUTPUT:

Corriente = 3.4000

Voltaje = 116

Potencia = 394

Energia = 0.0040

Answer 1

I have followed your advice and it actually works. The channel is already updated automatically.

thanks for your help