In going through your example code for the Butterworth filter library, I notice there's no example of a HPF, just a low pass. While I know you discuss the conversion of the transfer function in your github io page, I can't seem to understand how to specify those changes to the transfer function while using the library.
To use the same examples from Butterworth.ino, what would the values of f_s, f_c, and f_n have to be in order to implement an equivalent high pass filter with cutoff 25Hz and sample rate 100Hz?
Hi Pieter and team,
In going through your example code for the Butterworth filter library, I notice there's no example of a HPF, just a low pass. While I know you discuss the conversion of the transfer function in your github io page, I can't seem to understand how to specify those changes to the transfer function while using the library.
To use the same examples from Butterworth.ino, what would the values of f_s, f_c, and f_n have to be in order to implement an equivalent high pass filter with cutoff 25Hz and sample rate 100Hz?
Thanks