How to turn ON an output/function/GPIO for one second

Good day,

I am building a project for my degree. I have created a simple neural netowrk to classify images taken from my Pi Cam for an autonomous car.

I am at the piont where i have the trained model and based on the input image iether go FORWARD, RIGHT or LEFT. This is something that seems simple but i am unable to turn on the GPIO of 1sec. For some reason when an image is read it continueously turn on that respective GPIO out command.

I have attached my code if this make sense. i am a begginer.

%% Connect Raspberry Pi 4B & camera Board in Command Window

% mypi = raspi;

% mypi = raspi('192.168.43.157','pi','pi')

% cam = cameraboard(mypi,'Resolution','320x240');

%

%% Algorithm rev2

for i = 1:1

img = snapshot(cam);

% Preproccessing`````````````````````

imgNew = imresize(img,[227 227]); % resize image

[YPred,probs] = classify(trainedNetwork_1,imgNew);

figure(1);

imshow(imgNew)

label = YPred;

title(string(label) + ", " + num2str(100*max(probs),3) + "%");

end

if string(label) == "Forward"%fwd

for W = 1:1

writeDigitalPin(mypi, 5, 1);

writeDigitalPin(mypi, 6, 0);

writeDigitalPin(mypi, 27, 1);

writeDigitalPin(mypi, 22, 0);

pause(0.5);

end

elseif string(label) == "Left"%pivotleft

for Y = 1:1

writeDigitalPin(mypi, 5, 0);

writeDigitalPin(mypi, 6, 1);

writeDigitalPin(mypi, 27, 1);

writeDigitalPin(mypi, 22, 0);

pause(0.5);

end

elseif string(label) == "Right"%pivotleft

for Z = 1:1

writeDigitalPin(mypi, 5, 0);

writeDigitalPin(mypi, 6, 1);

writeDigitalPin(mypi, 27, 1);

writeDigitalPin(mypi, 22, 0);

pause(0.5);

end

end

Answer 1

[Prasanth Sunkara]

https://in.mathworks.com/matlabcentral/answers/660278-how-to-turn-on-a-gpio-output-for-one-second#answer_556583