Task 43

Task 43:

Here are some project sites:

http://www.arduino.cc/playground/Projects/ArduinoUsers

This project site is on the official Arduino website.

http://hacknmod.com/hack/top-40-arduino-projects-of-the-web/

This project site gives a list of 40 top arduino projects.

http://www.practicalarduino.com/projects

This project site has a few interesting projects.

http://www.arduinoprojects.com/

This project site is an open venue for you to put your own projects and get comments from other Arduino users.

Task 42

Task 42:


Here are some Bulletin Board rules:

•  You may not use this Bulletin Board to post any material which is knowingly false, abusive, hateful, harassing, obscene, threatening, invasive of a person's privacy, or otherwise violating any law.
  
• You may not post any copyrighted material, unless the copyright is owned by you or with permission of the copyright owner.
  
• Posts that are solely aimed at instigating fights, insulting or discriminating will be removed and will lead to a ban.
  
• Do not start a new thread when there is already a thread on the same topic.

Task 41

Task 41:

Here is a screenshot of the registration process for the YaBB:

Tasks 38 and 39

Task 38:

const int photocellPin = 0;
const int buttonPin = 2;

int photocellReading;
int buttonState;

void setup()
{
  Serial.begin(9600);
  pinMode(buttonPin,INPUT);
}

void loop()
{
  buttonState = digitalRead(buttonPin);
  if (buttonState == HIGH)
  {
    photocellReading = analogRead(photocellPin);
    Serial.println(photocellReading);
    delay(1000);
  }
delay(250);
}


Task 39:

const int photocellPin = 0;
const int buttonPin = 2;

int photocellReading;
int buttonState;
int readCount = 0;

void setup()
{
  Serial.begin(9600);
  pinMode(buttonPin,INPUT);
}

void loop()
{
  buttonState = digitalRead(buttonPin);
  if (buttonState == HIGH)
  {
    photocellReading = analogRead(photocellPin);
    readCount++;
    Serial.print("Reading number ");
    Serial.print(readCount);
    Serial.print(" is ");
    Serial.println(photocellReading);
    delay(1000);
  }
delay(250);
}

Tasks 34, 35, 36 and 37

Task 34:

int ranNum;

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

void loop()
{
  for (int count = 1; count <101; count++)
  {
  ranNum = random(10);
  Serial.println(ranNum);
  delay(500);
  }
  delay(5000);
}


Task 35:

int ranNum;

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

void loop()
{
  for (int count = 1; count <101; count++)
  {
  ranNum = random(10);
  Serial.print(count);
  Serial.print(".");
  Serial.print(ranNum);
  Serial.println();
  delay(500);
  }
  delay(5000);
}


Task 36:

int ranNum;
int total;
int average;

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

void loop()
{
  total = 0;
  for (int count = 1; count <101; count++)
  {
  ranNum = random(10);
  Serial.print(count);
  Serial.print(".");
  Serial.print(ranNum);
  Serial.println();
  total = (total + ranNum);
  delay(500);
  }
  average = (total / 100);
  Serial.print("The average of these random numbers is ");
  Serial.print(average);
  Serial.println();
  delay(5000);
}


Task 37:

After playing around with the baud rate: I found that, when I set it to 300, i could see each character printed on the serial monitor seperately. When i set it to the maximum of 115200 it was incredibly fast, but i didnt even see any data flow errors.

Tasks 30, 31 and 32

Task 30:

const int buttonPin = 2;
const int LEDPin = 13;

int buttonState = 0;

void setup ()
{
  pinMode (LEDPin, OUTPUT);
  pinMode(buttonPin, INPUT);
}

void loop ()
{
  buttonState = digitalRead(buttonPin);
  if (buttonState == HIGH)
  {
  digitalWrite(LEDPin, HIGH);

  }

  else
  {
  digitalWrite(LEDPin, LOW);
  }
}


Task 31:

const int buttonPin = 2;
const int LEDPin = 13;

int buttonState = 0;

void setup ()
{
  pinMode (LEDPin, OUTPUT);
  pinMode(buttonPin, INPUT);
}

void loop ()
{
  buttonState = digitalRead(buttonPin);
  if (buttonState == HIGH)
  {
  digitalWrite(LEDPin, LOW);
  }

  else
  {
  digitalWrite(LEDPin, HIGH);
  }
}


Task 32:


const int buttonPin = 2;
const int LEDPin = 13;

int buttonState = 0;

void setup ()
{
  Serial.begin(9600);
  pinMode (LEDPin, OUTPUT);
  pinMode(buttonPin, INPUT);
}

void loop ()
{
  buttonState = digitalRead(buttonPin);
  if (buttonState == HIGH)
  {
  digitalWrite(LEDPin, HIGH);
  Serial.println("Button Pressed - LED On");
  }

  else
  {
  digitalWrite(LEDPin, LOW);
  Serial.println("Button Not Pressed - LED Off");
  }
}

Task 28

Task 28:

int photocellPin = 0;     // the cell and 10K pulldown are connected to a0
int photocellReading;     // the analog reading from the sensor divider
int LEDpin = 11;          // connect Red LED to pin 11 (PWM pin)
int LEDbrightness;        //
void setup(void) {
  // We'll send debugging information via the Serial monitor
  Serial.begin(9600);  
}

void loop(void) {
  photocellReading = analogRead(photocellPin); 
 
  Serial.print("Analog reading = ");
  Serial.println(photocellReading);     // the raw analog reading
 
  // LED gets brighter the darker it is at the sensor
  // that means we have to -invert- the reading from 0-1023 back to 1023-0
  photocellReading = 1023 - photocellReading;
  //now we have to map 0-1023 to 0-255 since thats the range analogWrite uses
  LEDbrightness = map(photocellReading, 0, 1023, 0, 255);
  analogWrite(LEDpin, LEDbrightness);
 
  delay(100);
}