code

    properties (Access = private)
        arduino;
        isReading = false; threshold_v = 1;  moistureLine; thresholdLine;  startTime;  
        % 
        % dataBuffer; bufferSize = 10; dataTimer; 
    end
    
    % 
    % methods (Access = private)
    %    function collectData(app)
    % newData = readData();
    % app.dataBuffer = circshift(app.dataBuffer, -1); 
    % app.dataBuffer(end) = newData; 
    %    end
    % end
    

    % Callbacks that handle component events
    methods (Access = private)

        % Code that executes after component creation
        function startupFcn(app)
            app.arduino = arduino();
            %
            % app.dataBuffer = zeros(app.bufferSize, 1);
            % app.dataTimer = timer('ExecutionMode', 'fixedRate', 'Period', 1, 'TimerFcn', @(~,~)app.collectData);
            % start(app.dataTimer);
            configurePin(app.arduino, 'D4', 'DigitalOutput');

            app.moistureLine = animatedline(app.UIAxes, 'Color', 'm','LineStyle','-','LineWidth',0.5);
            app.thresholdLine = animatedline(app.UIAxes, 'Color', 'k','LineStyle','-','LineWidth',0.5); 
            legend(app.UIAxes,'Moisture Percentage','Treshold Line');
            app.SoilIsWateringLamp.Color= [0 0 0];
        end

        % Button pushed function: PlotButton
        function PlotButtonPushed(app, event)

            app.startTime = datetime('now');

            if ~isa(app.arduino, 'arduino')
                app.arduino = arduino();
            end

            if ~app.isReading

                app.isReading = true;
                while app.isReading
                  analogValue = readVoltage(app.arduino, 'A1');
                  moisturePercentage = interp1([0,5], [100,0], analogValue);

                    % 
                    % if ~isnumeric(moisturePercentage) || isnan(moisturePercentage) || moisturePercentage < 0 || moisturePercentage > 100
                    %     continue; 
                    %  end
                    

                    currentTime = datetime('now');
                    elapsedSeconds = seconds(currentTime - app.startTime); 
      
                    addpoints(app.moistureLine, elapsedSeconds, moisturePercentage);

                   addpoints(app.thresholdLine, elapsedSeconds, app.threshold_v);
                   
                    if moisturePercentage > app.threshold_v
                        writeDigitalPin(app.arduino, 'D4', 0); 
                         app.SoilIsWateringLamp.Color=[0 0 0];
                    else
                        writeDigitalPin(app.arduino, 'D4', 1); 
                         app.SoilIsWateringLamp.Color=[[0.47,0.67,0.19]];
                    end
                end
            end


        end

        % Button pushed function: ExitButton
        function ExitButtonPushed(app, event)
            delete(app);
        end

        % Value changed function: timeValue
        function timeValueValueChanged(app, event)
            duration = app.timeValue.Value; 
            app.UIAxes.XLim = [0 duration];
            app.UIAxes.XTick = 0:duration/10:duration;      
        end

        % Value changed function: ThresholdDropDown
        function ThresholdDropDownValueChanged(app, event)
            app.threshold_v = str2double(app.ThresholdDropDown.Value);            
        end

        % Button pushed function: SaveButton
        function SaveButtonPushed(app, event)
            filetype = app.FileTypeDropDown.Value;
            fileName = fullfile(getenv('USERPROFILE'), 'Desktop', 'Figure');

            switch filetype
                case '.jpg'
                    exportgraphics(app.UIAxes, [fileName '.jpg']);
                case '.png'
                    exportgraphics(app.UIAxes, [fileName '.png']);
                case '.fig'
                    exportgraphics(app.UIAxes, [fileName '.fig']);

            end

        end

        % Selection changed function: ColorButtonGroup
        function ColorButtonGroupSelectionChanged(app, event)
            moistcolor = app.ColorButtonGroup.SelectedObject;
            
             switch moistcolor.Text
                case 'Red'
                    m_color = 'r';
                case 'Blue'
                    m_color = 'b';
                case 'Green'
                    m_color = 'g';
                
            end
                app.moistureLine.Color=m_color;
        end

        % Selection changed function: ThicknessButtonGroup
        function ThicknessButtonGroupSelectionChanged(app, event)
            moistthickness = app.ThicknessButtonGroup.SelectedObject;

            switch moistthickness.Text        
                case 'Thin'
                m_width= 0.3;
                case 'Medium'
                    m_width=2;
                case 'Thick'
                    m_width=4;
            end
       
            app.moistureLine.LineWidth=m_width;           
        end

        % Selection changed function: LineStyleButtonGroup
        function LineStyleButtonGroupSelectionChanged(app, event)
            moiststyle = app.LineStyleButtonGroup.SelectedObject;
            
            switch moiststyle.Text
                case 'Dashed Dotted Line'
                    m_style= '-.';
                case 'Dashed Line'
                    m_style='--';
                case 'Dotted Line'
                    m_style= ':';
            end
            app.moistureLine.LineStyle=m_style;
        end

        % Selection changed function: ColorButtonGroup_2
        function ColorButtonGroup_2SelectionChanged(app, event)
            tresholdcolor = app.ColorButtonGroup_2.SelectedObject;
            
             switch tresholdcolor.Text
                case 'Red'
                    t_color = 'r';
                case 'Blue'
                    t_color = 'b';
                case 'Green'
                    t_color = 'g';
                
            end
                app.thresholdLine.Color=t_color;
        end

        % Value changed function: FileTypeDropDown
        function FileTypeDropDownValueChanged(app, event)
            filetype = app.FileTypeDropDown.Value;
            
        end

        % Value changed function: Switch
        function SwitchValueChanged(app, event)
            gridState = app.Switch.Value;
       
            if strcmp(gridState, 'Grid On')
                grid(app.UIAxes, 'on');
            else if  strcmp(gridState, 'Grid Off')
                grid(app.UIAxes, 'off');
            end
            end

        end

        % Selection changed function: ThicknessButtonGroup_2
        function ThicknessButtonGroup_2SelectionChanged(app, event)
            tresholdthickness = app.ThicknessButtonGroup_2.SelectedObject;
            
             switch tresholdthickness.Text        
                case 'Thin'
                t_width= 0.3;
                case 'Medium'
                    t_width=2;
                case 'Thick'
                    t_width=4;
            end
       
            app.thresholdLine.LineWidth=t_width;  
        end

        % Selection changed function: LineStyleButtonGroup_2
        function LineStyleButtonGroup_2SelectionChanged(app, event)
            tresholdstyle = app.LineStyleButtonGroup_2.SelectedObject;
            
            switch tresholdstyle.Text
                case 'Dashed Dotted Line'
                    t_style= '-.';
                case 'Dashed Line'
                    t_style='--';
                case 'Dotted Line'
                    t_style= ':';
            end
            app.thresholdLine.LineStyle=t_style;