Hi Attila. Thanks for the link to the thread about frequency measurements. I thought I would have a look but it won't run, I get this error:
Traceback (most recent call last): File "C:\Users\450362\Documents\AnalogIn_FFT.py", line 99, in <module> dwf.FDwfSpectrumWindow(byref(rgdWindow), c_int(nSamples), DwfWindowFlatTop, vBeta, byref(vNEBW)) File "C:\Users\450362\AppData\Local\Programs\Python\Python310\lib\ctypes\__init__.py", line 387, in __getattr__ func = self.__getitem__(name) File "C:\Users\450362\AppData\Local\Programs\Python\Python310\lib\ctypes\__init__.py", line 392, in __getitem__ func = self._FuncPtr((name_or_ordinal, self)) AttributeError: function 'FDwfSpectrumWindow' not found