I am currently looking at starting a datalogging project for my car, and I am looking at the possibility of logging lots (really lots) of things. Realistically I would need at least 24 analog inputs, but 36 would be preferable.
I saw the "Mux Shield" on the store, am I correct to assume that it will allow me to connect 48 analog inputs ? (Most of these will be sensors outputting between 0 and 5V) Am I also correct assuming that I can plug one shield on top of another shield, and if yes is there a limit to the number of shields one can use ?
For instance, is it possible to plug a mux shield, a gps shield and a tinkerkit shield (with accelerometer and gyroscope sensors on it) on an arduino ? If yes, which is the most powerful arduino CPU I can get which still works with all of these ? And is it possible to power it all using USB or PoE ? As this is for an embedded project I can take a laptop with me in the car (or I can use the 12V from the car but I'd rather not).
Finally my last question (I am terribly sorry for this long post), I would like to sample all these values every 10ms, and write it all to an SD card. Is this realistic ? Both from a CPU performance and from an SD-card bandwidth point of view ?
Thanks a lot in advance to those who will answer !