readChannelID = 123456; WeightFieldID = 1; TempFieldID = 3; readAPIKey = 'ABCDEF'; [Weight_Day1, timeStamps_Day1] = thingSpeakRead(readChannelID,'Fields',WeightFieldID, ... 'dateRange', [datetime('today')-days(0),datetime('today')-days(-1)],... 'ReadKey',readAPIKey); [TempDay1, timeStamps_Day1] = thingSpeakRead(readChannelID,'Fields',TempFieldID, ... 'dateRange', [datetime('today')-days(0),datetime('today')-days(-1)],... 'ReadKey',readAPIKey); Weight_Day1 = Weight_Day1; MyTime1 = timeStamps_Day1; yyaxis left plot(MyTime1(:),Weight_Day1(:), 'LineWidth', 2) ylabel('Gewicht [kg]'); yyaxis right plot(MyTime1(:),TempDay1(:), 'LineWidth', 2) ylabel('Temperatur [°C]'); xlabel('Datum'); title('Außentemperatur und Gewicht heute'); legend({'Gewicht','Temperatur'},'Location', 'best'); grid on