diff options
Diffstat (limited to 'libraries/WiFi/examples/WifiPachubeClient')
| -rw-r--r-- | libraries/WiFi/examples/WifiPachubeClient/WifiPachubeClient.ino | 190 | 
1 files changed, 190 insertions, 0 deletions
| diff --git a/libraries/WiFi/examples/WifiPachubeClient/WifiPachubeClient.ino b/libraries/WiFi/examples/WifiPachubeClient/WifiPachubeClient.ino new file mode 100644 index 0000000..f8ffc07 --- /dev/null +++ b/libraries/WiFi/examples/WifiPachubeClient/WifiPachubeClient.ino @@ -0,0 +1,190 @@ +/* +  Wifi Pachube sensor client +  + This sketch connects an analog sensor to Pachube (http://www.pachube.com) + using an Arduino Wifi shield. +  + This example is written for a network using WPA encryption. For  + WEP or WPA, change the Wifi.begin() call accordingly. +  + This example has been updated to use version 2.0 of the Pachube API.  + To make it work, create a feed with a datastream, and give it the ID + sensor1. Or change the code below to match your feed. +  + Circuit: + * Analog sensor attached to analog in 0 + * Wifi shield attached to pins 10, 11, 12, 13 +  + created 13 Mar 2012 + modified 31 May 2012 + by Tom Igoe + modified 8 Sept 2012 + by Scott Fitzgerald +  + This code is in the public domain. +  + */ +#include <SPI.h> +#include <WiFi.h> + +#define APIKEY         "YOUR API KEY GOES HERE" // replace your pachube api key here +#define FEEDID         00000                    // replace your feed ID +#define USERAGENT      "My Arduino Project"     // user agent is the project name + +char ssid[] = "yourNetwork";      //  your network SSID (name)  +char pass[] = "secretPassword";   // your network password + +int status = WL_IDLE_STATUS; + +// initialize the library instance: +WiFiClient client; +// if you don't want to use DNS (and reduce your sketch size) +// use the numeric IP instead of the name for the server: +IPAddress server(216,52,233,121);      // numeric IP for api.pachube.com +//char server[] = "api.pachube.com";   // name address for pachube API + +unsigned long lastConnectionTime = 0;          // last time you connected to the server, in milliseconds +boolean lastConnected = false;                 // state of the connection last time through the main loop +const unsigned long postingInterval = 10*1000; //delay between updates to pachube.com + +void setup() { +  //Initialize serial and wait for port to open: +  Serial.begin(9600);  +  while (!Serial) { +    ; // wait for serial port to connect. Needed for Leonardo only +  } +   +  // check for the presence of the shield: +  if (WiFi.status() == WL_NO_SHIELD) { +    Serial.println("WiFi shield not present");  +    // don't continue: +    while(true); +  }  +   +  // attempt to connect to Wifi network: +  while ( status != WL_CONNECTED) {  +    Serial.print("Attempting to connect to SSID: "); +    Serial.println(ssid); +    // Connect to WPA/WPA2 network. Change this line if using open or WEP network:     +    status = WiFi.begin(ssid, pass); + +    // wait 10 seconds for connection: +    delay(10000); +  }  +  // you're connected now, so print out the status: +  printWifiStatus(); +} + + +void loop() { +  // read the analog sensor: +  int sensorReading = analogRead(A0);    + +  // if there's incoming data from the net connection. +  // send it out the serial port.  This is for debugging +  // purposes only: +  while (client.available()) { +    char c = client.read(); +    Serial.print(c); +  } + +  // if there's no net connection, but there was one last time +  // through the loop, then stop the client: +  if (!client.connected() && lastConnected) { +    Serial.println(); +    Serial.println("disconnecting."); +    client.stop(); +  } + +  // if you're not connected, and ten seconds have passed since +  // your last connection, then connect again and send data: +  if(!client.connected() && (millis() - lastConnectionTime > postingInterval)) { +    sendData(sensorReading); +  } +  // store the state of the connection for next time through +  // the loop: +  lastConnected = client.connected(); +} + +// this method makes a HTTP connection to the server: +void sendData(int thisData) { +  // if there's a successful connection: +  if (client.connect(server, 80)) { +    Serial.println("connecting..."); +    // send the HTTP PUT request: +    client.print("PUT /v2/feeds/"); +    client.print(FEEDID); +    client.println(".csv HTTP/1.1"); +    client.println("Host: api.pachube.com"); +    client.print("X-ApiKey: "); +    client.println(APIKEY); +    client.print("User-Agent: "); +    client.println(USERAGENT); +    client.print("Content-Length: "); + +    // calculate the length of the sensor reading in bytes: +    // 8 bytes for "sensor1," + number of digits of the data: +    int thisLength = 8 + getLength(thisData); +    client.println(thisLength); + +    // last pieces of the HTTP PUT request: +    client.println("Content-Type: text/csv"); +    client.println("Connection: close"); +    client.println(); + +    // here's the actual content of the PUT request: +    client.print("sensor1,"); +    client.println(thisData); +   +  }  +  else { +    // if you couldn't make a connection: +    Serial.println("connection failed"); +    Serial.println(); +    Serial.println("disconnecting."); +    client.stop(); +  } +   // note the time that the connection was made or attempted: +  lastConnectionTime = millis(); +} + + +// This method calculates the number of digits in the +// sensor reading.  Since each digit of the ASCII decimal +// representation is a byte, the number of digits equals +// the number of bytes: + +int getLength(int someValue) { +  // there's at least one byte: +  int digits = 1; +  // continually divide the value by ten,  +  // adding one to the digit count for each +  // time you divide, until you're at 0: +  int dividend = someValue /10; +  while (dividend > 0) { +    dividend = dividend /10; +    digits++; +  } +  // return the number of digits: +  return digits; +} + +void printWifiStatus() { +  // print the SSID of the network you're attached to: +  Serial.print("SSID: "); +  Serial.println(WiFi.SSID()); + +  // print your WiFi shield's IP address: +  IPAddress ip = WiFi.localIP(); +  Serial.print("IP Address: "); +  Serial.println(ip); + +  // print the received signal strength: +  long rssi = WiFi.RSSI(); +  Serial.print("signal strength (RSSI):"); +  Serial.print(rssi); +  Serial.println(" dBm"); +} + + + | 
