Hey Min,
I understand that you wish to modify certain properties in a class within an iteration without the need of hardcoding it.
Based on your description of the query, I assume you have already stored the necessary data from the excel file into a table. You can simply extract the string containing the property names from the table and modify them accordingly. For instance refer to the following code snippet:
% Assuming you stored the reqd. info in a variable "data".
pins = data.Pin;
lamps = data.Lamp;
% Your loop iterations
while value == 1
for k = 1:length(pins)
pin = pins{k};
lamp = lamps{k};
pinValue = readDigitalPin(app.Output_Arduino, pin);
% Update the lamp color
if pinValue == 1
app.(lamp).Color = 'g'; %you can use the string itself to access the property value
% Make apt changes as you need
For referencing the properties using variables, I suggest you to check out the highlighted section of the following documentation: https://www.mathworks.com/help/matlab/matlab_oop/defining-properties.html#mw_5f7e0964-b8f2-4350-a393-ec3cb4e115f8
I hope this helps!
