Lab 4: Sensing- Force sensors and photocells

Description
In this lab, we explored two new analog sensors-- photocells ("phots") and Force Sensitive Resistors ("FSRs"). We used these sensors to control a GUI using Processing. 
 
For my homework, I used Processing and Arduino to control a horizontal line and the background color of my display, using an FSR. I placed an orange on my FSR to focus the amount of force applied to the sensor.
 
https://vimeo.com/76492698
 
Components Used
1- Arduino Uno
1- Breadboard 
1- USB cable
5- Jumper wires
1- 10K Ohm Resistor
1- Force Sensitive Resistor (FSR)
1- Orange
 
Arduino Code
/* Kristina Hart Lab 4
Serial Call adapted from Jeremy Blum "Arduino: Serial Communication and Processing"
 */
 
int fsrPin = A0;
 
void setup()
{
  Serial.begin(9600);
}
 
void loop()
{
  int val = map(analogRead(fsrPin), 0, 1023, 0, 255);
  Serial.println(val);
  delay(50);
}
 
Processing Code
/* Kristina Hart Lab 4
Processing adapted from Jeremy Blum "Arduino: Serial Communication and Processing"
and Processing 2 "Setup and Draw" (http://processing.org/examples/setupdraw.html)
*/
 
import processing.serial.*; //import serial library
Serial port; //create serial object
float brightness = 0;
 
void setup()
{
  size(640, 255);  // Size must be the first statement
  stroke(255);     // Set line drawing color to white
  frameRate(30);
  port = new Serial(this, "/dev/tty.usbmodem1421", 9600);
  port.bufferUntil('\n');
}
void draw()
{
  background(brightness, 200-brightness, 255-brightness);    
  line(0, brightness, width, brightness); 
}
 
void serialEvent (Serial port)
{
  brightness = float(port.readStringUntil('\n'));
  
}