Lab3 - The Cloud

The Cloud, a weather reporter.

Use a cotton to simulate the cloud in the sky.

 

Use 3 potentiometers to control the "temperature", "humidity", and "wind" to simulate the color of the cloud from a cloudy weather to a storm.

 

The cloud is blue when the weather is nice. It gradually becomes orange when the sun comes out (temperature gets high). Followed by the purple cloud due to rising humidity (before raining). Then the storm comes (high wind-speed) by changing the lighting frequency.

 

1- Arduino Uno

1- Breadboard

3- LED (R,G,B)

3- 220Ω Resistor

1- cutton

3- potentiometer

 

 

/*

* Weather Cloud

* A0: temperture (light blue -> orange -> red)

* A1: humidity (light blue -> blue -> purple)

* A2: wind (change frequency)

*

* Created 18 Feb 2013

* Kate Hsiao

*/

 

// Analog pin settings

int aIn = 0;    // Potentiometers connected to analog pins 0, 1, and 2

int bIn = 1;    //   (Connect power to 5V and ground to analog ground)

int cIn = 2;  

 

// Digital pin settings

int aOut = 9;   // LEDs connected to digital pins 9, 10 and 11

int bOut = 10;  //   (Connect cathodes to digital ground)

int cOut = 11;  

 

// Values

int aVal = 0;   // Variables to store the input from the potentiometers

int bVal = 0;  

int cVal = 0;  

 

void setup()

{

  pinMode(aOut, OUTPUT);   // sets the digital pins as output

  pinMode(bOut, OUTPUT);   

  pinMode(cOut, OUTPUT); 

  Serial.begin(9600);     // Open serial communication for reporting

}

 

void loop()

{

 

  aVal = analogRead(aIn) / 4;  // read input pins, convert to 0-255 scale

  bVal = analogRead(bIn) / 4; 

  cVal = analogRead(cIn) / 4;  

 

  analogWrite(aOut, aVal);

  analogWrite(bOut, aVal/8);

  analogWrite(cOut, bVal/4);

  if (cVal>1) {

    delay(255-cVal);

    analogWrite(aOut, aVal/2);

    analogWrite(bOut, aVal/16);

    analogWrite(cOut, bVal/8);

    delay(255-cVal);

  }

 

}