Just to piggyback on this, my brother and I are interested in building a riffle analogue this winter to study road salt events in our local stream. I am a chemistry/environmental science major and he is an electrical engineer. What I want to do: build a conductivity/temperature sensor board using a breadboard first, and record data on an arduino uno. If I understand right, the riffle also uses a Real Time Clock to time the conductivity readings, which the standard uno doesn't have.
What I'd like to know is, is the github repo currently the best reference for building the sensor board and the riffle-analogue, or are there better references in the research notes and blog posts? Every time I look on the website, I find more great information.
Thanks,
Patrick