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* This example adjusts the frequency of the output (tone) not the magnitude.
* the light fading above (<code>analogWrite()</code>) adjusts the brightness of the light (magnitude) with PWM.
== Sensor Homework ==
NEW ASSIGNMENT:
Acquire a sensor of some sort... not one of the ones from your kit. Could be a pressure, temperature, VOC, range-finder, accelerometer (!!) ... there are lots of options. Start with some of the links below. If you need more ideas, look through the web. Be sure to have your new sensor by next week!! We are going to use them in class, for Serial Communications.
Don't worry if you don't know how to make it work: if you are concerned whether your choice is viable, send me an e-mail with a link to your sensor of interest before you get it.
MORE SENSORS:
* http://www.sparkfun.com/commerce/categories.php?c=23
===A Cornucopia of sensors===
I gave some examples of sensors in the first part of today's lab.
* http://www.acroname.com/robotics/parts/c_Sensors.html
* Very good for interactive artworks!
* What else looks interesting?
** temperature
** pressure
** VOCs (Volatile Organic Compounds) [http://www.synkera.com/pdf/Synkera%20VOC%20Data%20Sheet.pdf] (see Natalie Jeremijenko's Feral Robotic Dogs: http://www.nyu.edu/projects/xdesign/feralrobots/)
** Hall Effect sensor