Spinning platform

Description

Play with the DC motor. The platform rotates like a music box with a ballerina on top (only I couldn't find a ballerina). Instead the platform rotates with some colorful wires on top.

Materials

• 1x Battery
• 1x Resistor
• 1x DC Motor
• 1x Transistor
• 1x Potentiometer
• 2x Paper Cup
• 1x Wood
• Tape

Audrino 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
}

Video

http://www.youtube.com/watch?v=FiG9Y2_Pj2c