How to turn on a GPIO (Raspberry Pi 4B) for one second

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Nitesh Ramdin
Nitesh Ramdin on 24 Nov 2020
Edited: Nitesh Ramdin on 24 Nov 2020
Hi
I am currently building a Raspberry pi autonomous using Mathlab neural network. I am using a Pi camera to capture images. Once an image is captured, with either a forward, left or right output command.
How do i go about turning on the string(label) on for one second only.
I could maybe turn on the forward for one second and implement a stop command to all the pins.
I am a begginer at this and need some direction.
Here is my code as below:
%% 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

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