November 24, 2007
Reading for November 27th, are now posted. Enjoy!

October 2, 2007
To upload your thoughtless acts, create a new assignment page like any other lab. You'll see "Thoughtless Acts" listed as one of the assignment options.

May 24, 2008
This site has been archived and is no longer editable. Stay tuned for the next version, coming in the fall!

Directional Indicator for Pot Rotation

Project Members: 


the color of the light indicates which direction your'e turning Pot1:

- if it's red, you're decreasing the pot's value. the brighter the red, the more quickly you're decreasing.
- if it's green, you're not changing the value (within a jitter of [-2, 2])
- if it's blue, you're increasing its value. the brighter the green, the more quickly you're increasing.


Pot2 varies the sampling rate used to measure the deltas:

- a low value on Pot2 means the program samples frequently
- a high value on Pot2 means the program samples infrequently


Components Used

3 Light Emitting Diodes (LED), one each of Red, Green and Blue

3 220-ohm Resistors

2 Potentiometers

a little tender loving care

Arduino Code

code link


photo link


kevin, this is really

kevin, this is really awesome. really :) now way to be thinking in the first order derivatives :)

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