Código da Andreia

arduino.pde

                                                                     
                                                                     
                                                                     
                                             
################ CODIGO TWITTER




/*

 ThingTweet App to Update a Twitter Status
 
 The ThingTweet sketch is designed for the Arduino + Ethernet Shield.
 This sketch updates a Twitter status via the ThingTweet App
 (http://community.thingspeak.com/documentation/apps/thingtweet/) using HTTP POST.
 ThingTweet is a Twitter proxy web application that handles the OAuth.
 
 Getting Started with ThingSpeak and ThingTweet:
 
    * Sign Up for a New User Account for ThingSpeak - https://www.thingspeak.com/users/new
    * Link your Twitter account to the ThingTweet App - Apps / ThingTweet
    * Enter the ThingTweet API Key in this sketch under "ThingSpeak Settings"
 
 Created: March 7, 2011 by Hans Scharler (http://www.iamshadowlord.com)
 
*/

#include <SPI.h>
#include <Ethernet.h>

// Local Network Settings
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
byte ip[] = { 192,168,1, 177 };
byte gateway[] = { 192, 168, 1, 1 };
byte subnet[] = { 255, 255, 255, 0 }; 

// ThingSpeak Settings
byte server[]  = { 184, 106, 153, 149 };         // IP Address for the ThingSpeak API
String thingtweetAPIKey = "625IQ2W6ZGJHAEHX";  // Write API Key for a ThingSpeak Channel
Client client(server, 80);

// Variable Setup
boolean lastConnected = false;

void setup()
{
  Ethernet.begin(mac, ip, gateway, subnet);
  Serial.begin(9600);
  delay(1000);
  
  // Update Twitter via ThingTweet
  if(!client.connected())
  {
    updateTwitterStatus("Alguém na portaaa!");
  }
}

void loop()
{  
  // Print Update Response to Serial Monitor
  if (client.available())
  {
    char c = client.read();
    Serial.print(c);
  }
  
  // Disconnect from ThingSpeak
  if (!client.connected() && lastConnected)
  {
    Serial.println();
    Serial.println("...disconnected.");
    Serial.println();
    
    client.stop();
  }
  
  lastConnected = client.connected();
}

void updateTwitterStatus(String tsData)
{
  if (client.connect() && tsData.length() > 0)
  { 
    // Create HTTP POST Data
    tsData = "api_key="+thingtweetAPIKey+"&status="+tsData;
    
    Serial.println("Connected to ThingTweet...");
    Serial.println();
        
    client.print("POST /apps/thingtweet/1/statuses/update HTTP/1.1\n");
    client.print("Host: api.thingspeak.com\n");
    client.print("Connection: close\n");
    client.print("Content-Type: application/x-www-form-urlencoded\n");
    client.print("Content-Length: ");
    client.print(tsData.length());
    client.print("\n\n");

    client.print(tsData);
  }
  else
  {
    Serial.println("Connection Failed.");   
    Serial.println();
  }
}


















################ CODIGO PUSHBUTTON (ACENDE O LED)




int ledPin = 13; // porta 13 em output para o LED

int inPin = 7; // porta 7 em input (para o push button)

int val = 0; // variável para ler o status do pino

void setup() {

pinMode(ledPin, OUTPUT); // declare LED como output

pinMode(inPin, INPUT); // declare pushbutton como input

}

void loop(){

val = digitalRead(inPin); // ler a entrada de valor

if (val == LOW) {// verificar se a entrada é baixa

digitalWrite(ledPin, LOW); // LED OFF

} else {

digitalWrite(ledPin, HIGH); // LED ON

}

}