Sensing Part 2: Force Sensitive Resistors and Photocells

Description:
Move around with the potentiometer from the left to the right. With the FSR you can shoot. The photocell is used to cheat because covering the cell so that it gets dark would slow down the game while you could still move fast. The object used to distribute the force on the FSR is a sponge, which works surprisingly well.
Parts used:
1 Potentiometer
1 FSR
1 Photocell
3 LEDs
3 220 Ohm resistors
2 10k resistors
The Arduino code:
int lightPin = 0;

Description
For the programming application, I wrote a program that has 6 circles that fade into different colors depending on how much pressure you apply to the force sensor. The 6th circle doesn't appear unless you apply pressure to it. I hope to use this as part of my group's midterm project, since we plan on using a touch surface with multicolored LEDs.

Description
 

Description
 
Starting with the Arduino setup from the last lab, I removed the poteniometers and replaced them with just one Force Sensitive Resistor (FSR). This FSR was connected to both anolog input (A0) and ground (through a 10K resistor). 
Addiitonally, I left one LED connected from the previous setup (through port 11 and a resistor, then the LED then to ground). This helped me debug since it would light up ever time the FSR received a force.