Description

Explore motion as an output.  I decided to make a new version of the classic Magic 8 Ball -- the Magic Toilet Roll!  Ask the Magic Toilet Roll a yes/no question then press the button and find out the answer! 

Components Used

1 1K Resistor

 1 10K Resistor  

1 Force Sensitive Resistor

1 DC Motor

cardboard box

sponge foam 

toilet paper roll 

Arduino Code

/*
 * one pot fades one motor
 * modified version of AnalogInput
 * by DojoDave <http://www.0j0.org>
 * http://www.arduino.cc/en/Tutorial/AnalogInput 
 * Modified again by dave
 */

int potPin = 0;   // select the input pin for the potentiometer
int motorPin = 9; // select the pin for the Motor
int val = 0;      // variable to store the value coming from the sensor

void setup() {
  Serial.begin(9600);
}

void loop() {
  val = analogRead(potPin);    // read the value from the sensor, between 0 - 1024
  Serial.println(val);
  analogWrite(motorPin, val/4); // analogWrite can be between 0-255
}

 Item

Magic Roll 1

Magic Roll 2