How do I make the Pin I select a variable

I have this code asking me which colour I want r,g,b

(ColourAsk)

x= input('What Colour? (r,g,b)','s');
y= input('What Second Colour? (r,g,b)','s');

if x == 'r'
    x='D5';
elseif x =='g'
    x= 'D9';
else
    x= 'D6';
end

if y == 'r'
    y='D5';
elseif y =='g'
    y= 'D9';
else
    y= 'D6';
end

This then goes to here where it is written:

(setgrad)

writePWMDutyCycle(a,x,grad)
writePWMDutyCycle(a,y,grad2)
writePWMDutyCycle(a,z,0)
pause(0.0000000000001)

Which then goes to here to control the Pins and slowly dim/brighten the lights connected to them:

(Askgrad)

ColourAsk
grad=1;
grad2=0;
while true
    %main program loop
    while grad > 0.01
        setgrad
        grad = grad - 0.01;
        grad2 = grad2 + 0.01;
    end
    
    while grad2 > 0.01
        setgrad
        grad = grad + 0.01;
        grad2 = grad2 - 0.01;
    end    
end

I get an Error telling me that in setgrad I have an invalid Pin Format and that in Askgrad line 7 is an error. How do I make it so that I can use a variable to set which pin is first and second.

Answer 1

[Anmol Dhiman]

Hi Cole,

It is evident that the error seems to be in setgrad function. Inside setgrad, you are calling multiple functions. THe problem might be in one of those functions. I will suggest you to check what exaclty is the pin format asked for. I maybe able to help you , if you share the code for functions within setgrad.

Thanks,

Anmol Dhiman