Description

For this mini project, I made a small installation where people can control the rotational speed of dancing wires and see the change in the form of the dancing wires as the speed changes.

Components

• Arduino Uno
• Wires
• 1 Potentiometer
• 1 DC motor
• Batteries
• 1 Resistor
• 1 Diode
• 1 Transistor
• Tape

Code

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
}

Images

The whole connected device:

The wires dancing at different radiuses, when the rotational speed of the  DC motor changes: