New answers tagged signal-processing
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Issue with 3rd order Butterworth low pass filter simulation
Attempt #2 will work if you do the math properly. You need to use complex numbers.
\$ s = j\omega \$
I don't use Matlab. Excel is clumsy for this purpose, but it works.
With formulas shown:
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Why does my square wave signal from an Elegoo Uno R3 have 3V overshoot/undershoot?
You mention measuring with a gound spring but I didn't see any pictures of that.
Figure 5 shows your probe coming in at the bottom of the board and the ground lead coming in from top of the board. ...
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Identifying a line code/binary signal
With constant bit time and variable on-off phases, this is a variety of pulse width modulation. PWM is most commonly used for encoding an analogue signal; however there's no reason we can't use it for ...
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Identifying a line code/binary signal
This does not immediately resemble any known protocol, not even IR protocol, so it must be a vendor specific custom protocol, likely with their own internal name for it.
Looks like pulse length (width)...
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How do I plot the DC equivalent of an AC sinusoidal signal in Python?
If you want something close to DC then use a high pass filter in python with a pole close to DC.
Median filters that take the average value also might be of use to the application
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How do I plot the DC equivalent of an AC sinusoidal signal in Python?
Just filter the data in Octave or Python (nympy, scipy, etc) using signal processing toolboxes.
Or maybe in C or whatever language.
A 1st order IIR filter that simulates an electronic RC low pass ...
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How do I plot the DC equivalent of an AC sinusoidal signal in Python?
"RMS" is one number, which is certainly not what you want. What you want is probably a rolling average. Take a window a certain number of points wide (say from point 1 to point n), and ...
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How do I split and isolate a digital signal?
It is unclear why you you ask about how to split a signal, maybe because you think splitting a signal is a solution to your original problem, about pull-down interfering a LED, but you don't need to ...
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Convert analog piezo "transition" to digital signal
The thread here, shows that a piezo can activate an LED. If you use a high efficiency AC coupled opto isolator with digital output like this one from Toshiba and drive the LED with the piezo sensor ...
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Accepted
How to convert an interrupt signal to toggle a continous signal
A simple solution would be a DFF:
simulate this circuit – Schematic created using CircuitLab
Every time a rising edge (this is important so the DFF should be of a rising-edge or high-level ...
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Can I convert a mini guitar-amp into a portable auxiliary speaker?
If there are 8 pins, there are 7 frets on the shirt so each one of 7 makes a pitch and the 8th is ground. If you grab ground and any other pin it’ll make sound though the pitch may be pretermined. ...
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