I am in a situation close to: Hi-speed external ADC
But with 100,000 ~ 500,000 samples per second, I don't need more.
I only want to detect changes in 2 sensors, so each loop is only an "analogread" and a couple of conditionals, so I have the 16MHz almost intact to store data from an external ADC.
What is the fastest thing you can aspire to with an arduino and an external ADC?
