I have written matlab code for filter.w1=[.0013 .1333];[b a]=butter(3,w1,'bandpass'); I need to integrate it to arduino board. How to achieve it?
What do you want to integrate in an Arduino board? The butter() command or filter()? The first is not trivial and I'd suggest to copy the created parameters. For teh 2nd you find M-code for FILTER in the forum and in this thread there is a link to a C-code implementation also.
Please ask more specific such that we do not waste your and our time with guessing, what you want.