/*
  Analog median and average
 by Tom Igoe
 
 This program reads an analog input and gives the average of 9 readings,
 and sorts the list of readings and delivers the median number.
 
 Created 17 October 2005
 Updated 
 
 */
int numReadings = 9; // number of samples to take
int median = 0;      // median of the sorted samples
int readingNumber;   // counter for the sample array

// variables for subroutines: 
byte i = 0;
byte j = 0;
byte position = 0;
int analogValues[9]; 

//function prototypes:
void bubbleSort(); 
int  averageArray();

void setup() {
  beginSerial(9600);
}

void loop() {
  for (readingNumber = 0; readingNumber < numReadings; readingNumber++) {
    //get the reading: 
    analogValues[readingNumber] = analogRead(0);
    // increment the counter:
    readingNumber++;
  }
  // sort the array using a bubble sort:
  bubbleSort();

  // get the middle element: 
  median = analogValues[numReadings / 2]; 




  // print the results: 
  // print the array, nicely ASCII-formatted:
  printString("Array: [");
  for (j = 0; j < numReadings; j++) {
    printInteger(analogValues[j]);
    printString (", ");
  }
  printString("]\r\n");
  // average the array: 
  printString(" Average = ");
  printInteger(averageArray());
  printString("\tMedian = ");
  printInteger(median);
  printString("\r\n");
}

// average the values in the array: 
int  averageArray() { 
  int total = 0;
  int average = 0;
  for (i = 0; i< numReadings; i++) { 
    total = total + analogValues[i]; 
  }
  average = total/(numReadings + 1);
  return average;
}

void bubbleSort() {
  int out, in, swapper;
  for(out=0 ; out < numReadings; out++) {  // outer loop 
    for(in=out; in analogValues[in+1] ) {   // out of order?
        // swap them:
        swapper = analogValues[in];
        analogValues [in] = analogValues[in+1];
        analogValues[in+1] = swapper;
      }
    }
  }
} 

* mail_client
 by Tom Igoe

  A simple mail sender client
 Created 21 January 2006
 */

import processing.net.*;
Client myClient;
int clicks;
String reply = null;
boolean sent = false;
void setup() {
  // Connect:
  myClient = new Client(this, "echonyc.com", 25);
  delay(300);

} 

void draw() {
  if(!sent) {
    waitForReply();
    myClient.write("HELO echonyc.com\n");
    waitForReply();
    myClient.write("MAIL FROM:tigoe@echonyc.com\n");
    waitForReply();
    myClient.write("RCPT TO:tigoe@echonyc.com\n");
    waitForReply();
    myClient.write("DATA\n");
    waitForReply();
    myClient.write("Subject:Noodles\n");
    myClient.write("From:tigoe@echonyc.com\n");
    myClient.write("To:tigoe@tigoe.net\n");
    myClient.write("\rHere's the body\n.\n");
    waitForReply();
    myClient.write("QUIT\n\r");
    waitForReply();
  }
  sent = true;
} 

void waitForReply() {
  int newChar = 0;
  while (newChar != 10) {
    if(myClient.available() > 0) {
      newChar = myClient.read();
      reply += (char)newChar;
    }
  }
  println(reply);
}

//code that controls basic 
//(play/pause, next, previous, volume up, and volume down) functions of ipod
//rosie daniel

int hits = 0; 

int buttonStates[]={0,0,LOW,LOW,LOW,LOW,LOW};
int buttonPrevious[]={0,0,LOW,LOW,LOW,LOW,LOW};
int buttonRelease[] = {0xFF, 0x55, 0x03, 0x02, 0x00, 0x00,0xFB};

int commands[]={0,0,0x01,0x08,0x10,0x02,0x04}; 

int checkSum(int len, int mode, int command1, int command2, int parameter) {
  int checksum = 0x100 - ((len + mode + command1 + command2+ parameter) & 0xFF);
  return checksum;
}

void setup() {
  Serial.begin(19200);
  pinMode(2, INPUT);
  pinMode(3, INPUT);
  pinMode(4, INPUT);
  pinMode(5, INPUT);
  pinMode(6, INPUT);
}

void loop() {

  for (int c=2; c<7; c++)
  {
     buttonStates[c] = digitalRead(c);

  buttonStates[c] = digitalRead(c);

  if (buttonStates[c] != buttonPrevious[c] ) {
    delay(5); //helps avoid a 'double' press - check a second time to see if the button is still pressed after a delay
     buttonStates[c] = digitalRead(c);
    if (buttonStates[c] == HIGH) {
      sendCommand(commands[c]);
      //Serial.print(hits);
      hits++;
    }
    buttonPrevious[c] = buttonStates[c];
  } 

}

}

void sendCommand(int cmd) {
  int cs = checkSum(0x03, 0x02, 0x00, cmd, 0);
   Serial.println(cs,HEX);

  int bytes[] = {0xFF, 0x55,  0x03, 0x02, 0x00, cmd, cs};
  for (int i = 0; i < 8; i++) {
    Serial.print(bytes[i], BYTE);

  }

  for (int i = 0; i < 8; i++) {
     Serial.print(buttonRelease[i],BYTE);
    }
}