Low Pass Smoothing & DC Removal

Smoothing w/ Eric Forman

Smoothing w/ Tom Igoe

Smoothing w/ Paul Badger

Eric Forman: http://teaching.ericforman.com/smoothing-sensor-input/

Tom Igoe:     http://www.tigoe.com/pcomp/code/arduinowiring/41/

Paul Badger: http://playground.arduino.cc/main/smooth