Xively demo with tgs2600

reader.py

#!/usr/bin/python/
# Get xively library in https://github.com/xively/xively-python
import xively
import datetime

def main():
    now = datetime.datetime.utcnow()
    earliest = now - datetime.timedelta(minutes=30)
    api = xively.XivelyAPIClient("SL2N1SZTVFZHxb2p2DXq1GdtaKInCpv521mFtOxwmkrrBvsL")
    feed = api.feeds.get("1068165020")
    datastreams = feed.datastreams.get("sensor1",start=earliest, end = now)
    for data in datastreams.datapoints:
        print data.at, data.value

if __name__ == "__main__":
    main()

sensor_node.ino

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

byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
char xivelyKey[] = "You Key";

char sensorId[] = "sensor1";

XivelyDatastream datastreams[] = {
  XivelyDatastream(sensorId, strlen(sensorId), DATASTREAM_FLOAT),
};

XivelyFeed feed(feed_id_here, datastreams, 1);

EthernetClient client;
XivelyClient xivelyclient(client);

void setup(){
  Serial.begin(9600);
  while (Ethernet.begin(mac) != 1)
  {
    Serial.println("Error getting IP address via DHCP");
  }
}

void loop(){
  int sensor_value = analogRead(2);
  datastreams[0].setFloat(sensor_value);
  Serial.println(datastreams[0].getFloat());
  int ret = xivelyclient.put(feed, xivelyKey);
  Serial.print("Xivelyclient.put returned:");
  Serial.println(ret);
  delay(1000);
}