I want to get an external analog signal via arduino and then perform its FFT. Kindly Help

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KSHITIJ SHAKYA
KSHITIJ SHAKYA 2020-1-31
回答： Githin John 2020-2-7
I got the signal vector of my analog data via arduino but I couldnt determine the time length of signal thus the FFT couldnt be performed. The X-axis of FFT should be in Hertz.
a=arduino('com10','Mega2560')
v=zeros(1000,1);
t=seconds(v);
t0=datetime('now');
for ii=1:1000
v(ii)=readVoltage(a,'A0');
t(ii)=datetime('now')-t0;
end
Y=fft(v);

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Githin John
Githin John 2020-2-7

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