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Added Pachube clients (untested)
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Tom Igoe
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146
WiFi/examples/WifiPachubeClient/WifiPachubeClient.ino
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146
WiFi/examples/WifiPachubeClient/WifiPachubeClient.ino
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/*
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Wifi Pachube sensor client
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This sketch connects an analog sensor to Pachube (http://www.pachube.com)
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using an Arduino Wifi shield.
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This example has been updated to use version 2.0 of the Pachube.com API.
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To make it work, create a feed with a datastream, and give it the ID
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sensor1. Or change the code below to match your feed.
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Circuit:
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* Analog sensor attached to analog in 0
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* Wifi shield attached to pins 10, 11, 12, 13
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created 2 March 2012
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by Tom Igoe
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This code is in the public domain.
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*/
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#include <SPI.h>
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#include <WiFi.h>
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#define APIKEY "YOUR API KEY GOES HERE" // replace your pachube api key here
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#define FEEDID 00000 // replace your feed ID
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#define USERAGENT "My Project" // user agent is the project name
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char ssid[] = "yourNetwork"; // your network SSID (name)
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char pass[] = "secretPassword"; // your network password
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int status = WL_IDLE_STATUS;
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// initialize the library instance:
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WiFiClient client;
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long lastConnectionTime = 0; // last time you connected to the server, in milliseconds
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boolean lastConnected = false; // state of the connection last time through the main loop
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const int postingInterval = 10000; //delay between updates to Pachube.com
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void setup() {
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// start serial port:
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Serial.begin(9600);
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status = WiFi.begin(ssid, pass);
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if ( status != WL_CONNECTED) {
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Serial.println("Couldn't get a wifi connection");
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while(true);
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}
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else {
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Serial.println("Connected to wifi");
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}
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}
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void loop() {
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// read the analog sensor:
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int sensorReading = analogRead(A0);
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// if there's incoming data from the net connection.
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// send it out the serial port. This is for debugging
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// purposes only:
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if (client.available()) {
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char c = client.read();
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Serial.print(c);
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}
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// if there's no net connection, but there was one last time
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// through the loop, then stop the client:
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if (!client.connected() && lastConnected) {
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Serial.println();
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Serial.println("disconnecting.");
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client.stop();
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}
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// if you're not connected, and ten seconds have passed since
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// your last connection, then connect again and send data:
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if(!client.connected() && (millis() - lastConnectionTime > postingInterval)) {
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sendData(sensorReading);
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}
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// store the state of the connection for next time through
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// the loop:
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lastConnected = client.connected();
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}
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// this method makes a HTTP connection to the server:
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void sendData(int thisData) {
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// if there's a successful connection:
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if (client.connect("www.pachube.com", 80)) {
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Serial.println("connecting...");
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// send the HTTP PUT request:
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client.print("PUT /v2/feeds/");
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client.print(FEEDID);
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client.println(".csv HTTP/1.1");
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client.print("Host: api.pachube.com\n");
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client.print("X-PachubeApiKey: ");
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client.println(APIKEY);
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client.print("User-Agent: ");
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client.println(USERAGENT);
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client.print("Content-Length: ");
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// calculate the length of the sensor reading in bytes:
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// 8 bytes for "sensor1," + number of digits of the data:
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int thisLength = 8 + getLength(thisData);
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client.println(thisLength);
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// last pieces of the HTTP PUT request:
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client.print("Content-Type: text/csv\n");
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client.println("Connection: close\n");
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// here's the actual content of the PUT request:
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client.print("sensor1,");
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client.println(thisData);
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// note the time that the connection was made:
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lastConnectionTime = millis();
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}
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else {
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// if you couldn't make a connection:
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Serial.println("connection failed");
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Serial.println();
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Serial.println("disconnecting.");
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client.stop();
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lastConnected = client.connected();
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}
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}
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// This method calculates the number of digits in the
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// sensor reading. Since each digit of the ASCII decimal
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// representation is a byte, the number of digits equals
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// the number of bytes:
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int getLength(int someValue) {
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// there's at least one byte:
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int digits = 1;
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// continually divide the value by ten,
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// adding one to the digit count for each
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// time you divide, until you're at 0:
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int dividend = someValue /10;
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while (dividend > 0) {
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dividend = dividend /10;
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digits++;
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}
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// return the number of digits:
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return digits;
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}
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@ -0,0 +1,127 @@
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/*
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Wifi Pachube sensor client with Strings
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This sketch connects an analog sensor to Pachube (http://www.pachube.com)
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using a Arduino Wifi shield.
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This example uses the String library, which is part of the Arduino core from
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version 0019.
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Circuit:
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* Analog sensor attached to analog in 0
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* Wifi shield attached to pins 10, 11, 12, 13
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created 2 March 2012
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by Tom Igoe
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This code is in the public domain.
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*/
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#include <SPI.h>
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#include <WiFi.h>
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#define APIKEY "YOUR API KEY GOES HERE" // replace your pachube api key here
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#define FEEDID 00000 // replace your feed ID
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#define USERAGENT "My Project" // user agent is the project name
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char ssid[] = "yourNetwork"; // your network SSID (name)
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char pass[] = "secretPassword"; // your network password
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int status = WL_IDLE_STATUS;
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// initialize the library instance:
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WiFiClient client;
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long lastConnectionTime = 0; // last time you connected to the server, in milliseconds
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boolean lastConnected = false; // state of the connection last time through the main loop
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const int postingInterval = 10000; //delay between updates to Pachube.com
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void setup() {
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// start serial port:
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Serial.begin(9600);
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status = WiFi.begin(ssid, pass);
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if ( status != WL_CONNECTED) {
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Serial.println("Couldn't get a wifi connection");
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while(true);
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}
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else {
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Serial.println("Connected to wifi");
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}
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}
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void loop() {
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// read the analog sensor:
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int sensorReading = analogRead(A0);
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// convert the data to a String to send it:
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String dataString = "sensor1,";
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dataString += sensorReading;
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// you can append multiple readings to this String if your
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// pachube feed is set up to handle multiple values:
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int otherSensorReading = analogRead(A1);
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dataString += "\nsensor2,";
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dataString += otherSensorReading;
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// if there's incoming data from the net connection.
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// send it out the serial port. This is for debugging
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// purposes only:
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if (client.available()) {
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char c = client.read();
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Serial.print(c);
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}
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// if there's no net connection, but there was one last time
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// through the loop, then stop the client:
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if (!client.connected() && lastConnected) {
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Serial.println();
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Serial.println("disconnecting.");
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client.stop();
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}
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// if you're not connected, and ten seconds have passed since
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// your last connection, then connect again and send data:
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if(!client.connected() && (millis() - lastConnectionTime > postingInterval)) {
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sendData(dataString);
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}
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// store the state of the connection for next time through
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// the loop:
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lastConnected = client.connected();
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}
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// this method makes a HTTP connection to the server:
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void sendData(String thisData) {
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// if there's a successful connection:
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if (client.connect("api.pachube.com", 80)) {
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Serial.println("connecting...");
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// send the HTTP PUT request:
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client.print("PUT /v2/feeds/");
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client.print(FEEDID);
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client.println(".csv HTTP/1.1");
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client.print("Host: api.pachube.com\n");
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client.print("X-PachubeApiKey: ");
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client.println(APIKEY);
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client.print("User-Agent: ");
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client.println(USERAGENT);
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client.print("Content-Length: ");
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client.println(thisData.length(), DEC);
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// last pieces of the HTTP PUT request:
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client.print("Content-Type: text/csv\n");
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client.println("Connection: close\n");
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// here's the actual content of the PUT request:
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client.println(thisData);
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// note the time that the connection was made:
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lastConnectionTime = millis();
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}
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else {
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// if you couldn't make a connection:
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Serial.println("connection failed");
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Serial.println();
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Serial.println("disconnecting.");
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client.stop();
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lastConnected = client.connected();
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}
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}
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