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Trying to pause the code until my button is pressed and will continue the code

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Joel Erdmann
Joel Erdmann 2019-11-20
编辑： Ridwan Alam 2019-11-21
I want my code to not run until I press a button on my curcuit which will cause DigitalPin('D4') to be 0 and then I want it to run my code.
clear all
clear
clc
a = arduino('com3', 'uno');
s = servo(a, 'D10','MaxPulseDuration', .0025, 'MinPulseDuration', .0005);
readDigitalPin(a,'D2')
n = 200;
x = zeros(1,n);
for k = 1:n;
z = readVoltage(a,'A5');
p = ((1023 / 5) * z);
x(k) = (p / 1023);
writePosition(s,x(k));
end
for k = 1:n
writePosition(s,x(k))
end

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回答（1 个）

Ridwan Alam
Ridwan Alam 2019-11-20
编辑：Ridwan Alam 2019-11-21
You can use a while loop to wait:
while(readDigitalPin(a,'D4')!=0)
% wait here
end

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