arch497-08

[arch497-08]

[arch497-08]

Flash Detector with Analog Interrupt Code

int flashes = 0;

int wait = 1000;

void setup()

{

  pinMode(7,INPUT);

  pinMode(13, OUTPUT);

  Serial.begin(9600);

  ACSR = B01011010; // comparator interrupt enabled and tripped on falling edge.

  digitalWrite(13, HIGH);

}

void loop()

{

  for(int i=0; i<flashes; i++)

  {

    digitalWrite(13, LOW);

    delay(100);

    digitalWrite(13, HIGH);

    delay(100);

  }

  delay(1000);

}

ISR(ANALOG_COMP_vect)

{

  flashes++;

  Serial.print("Number of Flashes: ");

  Serial.println(flashes);

  delay(wait);

}

[arch497-08]

Camera Flash around Crown Hall

[arch497-08]

The more a door is used the brighter its leds become.

Code:

int wdPin=13;

int edPin=12;

int wHall=0;

int eHall=0;

int westLight=3;

int eastLight=5;

int westCount=0;

int eastCount=0;

int totalCount=0;

int westValue=0;

int eastValue=0;

String wdState=”closed”;

String edState=”closed”;

int maxValue=255;

void setup() 

{

  pinMode(wdPin, INPUT);

  pinMode(edPin, INPUT);

  pinMode(eastLight, INPUT);

  pinMode(westLight, INPUT);

  Serial.begin(9600);

}

void loop() 

{

    processWest();

    processEast();

    processCount();

    processOutput();

    delay(1000);

}

void processWest()

  {

   wHall = digitalRead(wdPin);

  // Serial.println(wHall);

   if (wdState.equals(“closed”))   

   {      

       if(wHall == HIGH) 

       {

           westCount+=40;

           wdState=”open”;

       }

   }

   else 

   {

     if(wHall==LOW)

     {

       wdState=”closed”;

     }

   }

  } 

  void processEast()

  {

   eHall = digitalRead(edPin);

    Serial.println(eHall);

    if (edState.equals(“closed”))   

   { 

         if(eHall == HIGH) 

         {

           eastCount+=40;

           edState=”open”;           

         } 

    }

    else 

    {

     if(eHall==LOW)

     {

      edState=”closed”;

     }

   }

       }

  void processCount()

  {

    totalCount=eastCount+westCount;

    float eastPerc=(float)eastCount/(float)totalCount;

    Serial.println(eastPerc);

    float westPerc=(float)westCount/(float)totalCount; 

    Serial.println(westPerc);

    if(eastCount>0)

    {

      eastValue=maxValue*eastPerc;

    }

    if(westCount>0)

    {

      westValue=maxValue*westPerc;

    }

  }

  void processOutput()

  {

    //int westValue = map(westValue, 0, maxValue, 0, 100);  

    //int eastValue = map(eastValue, 0, maxValue, 0, 100);  

    analogWrite(westLight,westValue);

    analogWrite(eastLight,eastValue);

    Serial.print(“West Value: “);

    Serial.println(westValue);

    Serial.print(“West Count: “);

    Serial.println(westCount);

    Serial.print(“East Value: “);

    Serial.println(eastValue);

    Serial.print(“East Count: “);

    Serial.println(eastCount);

    Serial.print(“Total Count: “);

    Serial.println(totalCount);

  }

[arch497-08]

[arch497-08]

As one enters through a door the opposite door glows brighter to attract people and even out usage of both doors (symmetrical usage).

CODE:

int wdPin=13;

int edPin=12;

int wHall=0;

int eHall=0;

int westLight=3;

int eastLight=5;

int westCount=0;

int eastCount=0;

int totalCount=0;

int westValue=0;

int eastValue=0;

String wdState=”closed”;

String edState=”closed”;

int maxValue=255;

void setup() 

{

  pinMode(wdPin, INPUT);

  pinMode(edPin, INPUT);

  pinMode(eastLight, INPUT);

  pinMode(westLight, INPUT);

  Serial.begin(9600);

}

void loop() 

{

    processWest();

    processEast();

    processCount();

    processOutput();

    delay(1000);

}

void processWest()

  {

   wHall = digitalRead(wdPin);

  // Serial.println(wHall);

   if (wdState.equals(“closed”))   

   {      

       if(wHall == HIGH) 

       {

           eastCount+=40;

           wdState=”open”;

       }

   }

   else 

   {

     if(wHall==LOW)

     {

       wdState=”closed”;

     }

   }

  } 

  void processEast()

  {

   eHall = digitalRead(edPin);

    Serial.println(eHall);

    if (edState.equals(“closed”))   

   { 

         if(eHall == HIGH) 

         {

           westCount+=40;

           edState=”open”;           

         } 

    }

    else 

    {

     if(eHall==LOW)

     {

      edState=”closed”;

     }

   }

       }

  void processCount()

  {

    totalCount=eastCount+westCount;

    float eastPerc=(float)eastCount/(float)totalCount;

    Serial.println(eastPerc);

    float westPerc=(float)westCount/(float)totalCount; 

    Serial.println(westPerc);

    if(eastCount>0)

    {

      eastValue=maxValue*eastPerc;

    }

    if(westCount>0)

    {

      westValue=maxValue*westPerc;

    }

  }

  void processOutput()

  {

    //int westValue = map(westValue, 0, maxValue, 0, 100);  

    //int eastValue = map(eastValue, 0, maxValue, 0, 100);  

    analogWrite(westLight,westValue);

    analogWrite(eastLight,eastValue);

    Serial.print(“West Value: “);

    Serial.println(westValue);

    Serial.print(“West Count: “);

    Serial.println(westCount);

    Serial.print(“East Value: “);

    Serial.println(eastValue);

    Serial.print(“East Count: “);

    Serial.println(eastCount);

    Serial.print(“Total Count: “);

    Serial.println(totalCount

    );

  }

[arch497-08]

Using a Piezo sensor to detect vibration. When detected have an alarm sound and a RGB led go off.

[arch497-08]

Changing an RGB led with 4 Pots. One of them controlling White, another Red, another Green, then Blue respectively.

The Code:

/*

  AnalogReadSerial

  Reads an analog input on pin 0, prints the result to the serial monitor.

  Attach the center pin of a potentiometer to pin A0, and the outside pins to +5V and ground.

   This example code is in the public domain.

 */

int Red = 3;

int Green = 5;

int Blue = 6;

// the setup routine runs once when you press reset:

void setup() {

  // initialize serial communication at 9600 bits per second:

  Serial.begin(9600);

pinMode(Red, INPUT);

pinMode(Green, INPUT);

pinMode(Blue, INPUT);

}

// the loop routine runs over and over again forever:

void loop() {

 // int intValue1;

  //int redValue1;

  //int greenValue1;

  //int blueValue1;

     // read the input on analog pin 0:

  int intValue = analogRead(A0);

  int redValue = analogRead(A1);

  int blueValue = analogRead(A2);

  int greenValue = analogRead(A3);

  int intValue1 = map(intValue,0,1023,0,6);

     int redValue0 = (redValue*intValue1);

  int blueValue0 = (blueValue*intValue1);

  int greenValue0 = (greenValue*intValue1);

        int redValue1 = map(redValue0,0,5115,0,255);

  int blueValue1 = map(blueValue0,0,5115,0,255);

  int greenValue1 = map(greenValue0,0,5115,0,255);

        analogWrite(Red, redValue1);

  analogWrite(Green, greenValue1);

  analogWrite(Blue, blueValue1);

     // print out the value you read:

  Serial.print("Intensity");

  Serial.print(" ");

  Serial.print(intValue1);

  Serial.print(" + ");

  Serial.print("Red");

  Serial.print(" ");

  Serial.print(redValue1);

  Serial.print(" + ");

  Serial.print("Green");

  Serial.print(" ");

  Serial.print(greenValue1);

  Serial.print(" + ");

  Serial.print("Blue");

  Serial.print(" ");

  Serial.println(blueValue1);

     delay(1);        // delay in between reads for stability

}

[arch497-08]

Midterm prototype

[arch497-08]

[arch497-08]

Eclipse: October 2014

[arch497-08]

Controlling the position of a servo motor with a potentiometer

[arch497-08]

Blinking an LED with a switch and a potentiameter.