See, I have no trouble reliably getting the data out of the sensor and into a variable. But I can't implement the fft() in C for the life of me, and even if I could, my little itty-bitty microcontrollers probably don't have that level of number crunching.
Ahhh! Yes, I do all the post processing off the chip. You could play with a ...oh geeze, its Friday, what are they called...? The things that configure themselves to be a circuit and can only be configured once. Jeeze, sorry on the name here. JFET maybe? I'm sorry. Try arduino as a good intro. I think they have some fft libraries.
