Hi everyone!!
I am working in a project where different materials have to be distinguished. I wanted to do this by analyzing the frequency of their sounds when they hit another surface. I have already checked that the frequencies of each material are distinguishable from one another by hooking a cheap microphone to the computer. The challenge now is to do this autonomously with the Arduino... :-/ How do I hook up a microphone to the board? And, does anyone have a library that I could use for the sound analysis??
Thanks!!!