Input / Output Coincidence Lab Assignment

For this assigment, i used photocells and piezo speaker to emulate a keyboard. I used three photocells and used the combinations ( 2^3 ) to produce the 8 notes
Attached the video and the code for the same
https://www.dropbox.com/s/bw5c1q940zij8bl/20131012_215232.mp4
 
 
 

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DESCRIPTION
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Description:
I created a table which helps me focus on my work and prevents me from playing with my phone. When I lift the phone off the table it starts buzing. I wanted to make it unique to the phone by using the phone weight, so that the system could not be fooled by any other device, but I was not able to get that data accurately, so instead I used the photo sensor.
Components:
1 Arduino
1 110 ohm resistor
1 Photo sensor
1 cardboard assembly
1 speaker
Code:
 

Description:

DESCRIPTION

The purpose of this device is to trigger an alarm when someone opens a bottle of medicine. The device uses an arduino with potentiometer for analog input. Once a certain threshold value from the potentiometer is reached then the alarm is triggered and increases in pitch as you continue to unscrew off the cap. The photocell is a motion detector that continues to vary the pitch until the cap is screwed back on. The values of the two analog inputs are summed and input into a Piezzo speaker which converts this integer into a sound.

For this project I used the setup for the Thermin and added an air pocket. I want to use this air pocket as a pillow and simulate air being released through the piezo speakers.  

/* Air Pocket Theremin

 * --------

 *

 *

 * Created 24 October 2006

 * copyleft 2006 Tod E. Kurt <tod@todbot.com

 * http://todbot.com/

 */

Description:

For this assignment I was extremely inspired by this art peice:https://vimeo.com/76479685

I have attempted to recreate the concept behind the functioning of the peice which is,

a circuit in delicate balance which gets excited by external input and then undergoes damped oscillations for a delayed effect.

Description

Description:
For this lab project, I created a plastic skull that reacts to its environment. The darker it is around it (or rather, the more its photocell is covered), the brighter a red LED on its inside gets. It will also play a tone of the C Major scale, depending on the brightness.
 
Components used: