Thinking outloud because its not somthing i can do but maybe somone else got half way though or can point me in the right direction.
Is there a board out there with a hell of a lot of analog inputs? or a shield to convert analog to digital imputs?
Thinking outloud because its not somthing i can do but maybe somone else got half way though or can point me in the right direction.
Is there a board out there with a hell of a lot of analog inputs? or a shield to convert analog to digital imputs?
how many analog ports are you talking about?
and how often do you want to sample?
with how many bits?
You can put an analog switch in front of each of the Mega2560's 10-bit ADC inputs, and connect each input one at a time using the internal ADC.
Each selects one of 16, 16 x 16 = 256 inputs
Or, use a bank of chips like these
and take multiple samples (one per chip) at one time and read them in sequentially.
Answer robtillaart's questions and something more concrete can be presented.