Signals and Filters

Some code to play with signals and filters, as seen in Desma256:

analogIn2_toSerialOut_Arduino.zip:
You need to install this code on your arduino board.
It will read from analog input 2 and send the signal out via serial formatted properly for the following 2 apps.

SerialOscilloscope.zip:
This processing app will read the serial signal from arduino and draw both the raw signal data and a low pass filtered version. This is a pretty simple app intended to demonstrate a very simple approach to low pass filtering.

SignalsAndFilters.zip:
For the adventurous, here's the app I demonstrated in class. You'll need to have the processing library Ess installed. Hotkeys are all listed at the beginning of the file (there are many). Contact me if you want help to get this working.