How do I make the Pin I select a variable

Question

Cole Sigal 2020-4-5

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/515621-how-do-i-make-the-pin-i-select-a-variable

回答： Anmol Dhiman 2020-4-8

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.

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Answer 1

Anmol Dhiman 2020-4-8

0
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/515621-how-do-i-make-the-pin-i-select-a-variable#answer_424835

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