MATLAB: How to Turn LED blinking on and off using Toggle button

arduinomatlab gui

On a toggle button callback, I'm doing this:
while button_state == get(hObject,'Max')
    writeDigitalPin(a,'D3',1);
    writeDigitalPin(a, 'D6' ,0);
    pause(.5);
    writeDigitalPin(a,'D3',0);
    writeDigitalPin(a, 'D6' ,1);
    pause(.5);
end
if button_state == get(hObject,'Min')
    writeDigitalPin(a, 'D3' ,0);
    writeDigitalPin(a, 'D6' ,0);
end
Now problem is once LED starts blinking, they wont stop and blink continuously, even after I turn toggle button "off". Help me solving the logic.

Best Answer

You're not updating button_state inside the loops. You need to do that
while button_state == handles.btnToggle.Max
    writeDigitalPin(a,'D3',1);
    writeDigitalPin(a, 'D6' ,0);
    pause(.5);
    writeDigitalPin(a,'D3',0);
    writeDigitalPin(a, 'D6' ,1);
    pause(.5);
    % Update button status
    button_state = handles.btnToggle.Value;  % Or however you get it.
end
Same for the other while loop.
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