9-1 Fabduino

Thanks to Ed, I made Fabduino (ver0.2) this week.
Ella's diagram is also very helpful. Also I would like to say thank you to Huang. He often encouraged me and gave me a help.

Fabduino!





9-2 PWM and Noise Cancellation

With regard to this week's assignment, my idea is a simple experiment of noise-cancelling with two speakers.

http://green-glossary.com/green-glossary-photos-a.html

This is a simple code for generating original phase and inverted phase.



The result is....






Not good. It's simply because acoustic problem. Noise Cancelling is not so easy. Wmm...How can I get Directional Speakers in Boston?