Standalone Datacollecting Webserver

Projects Discussion and Showcase Home Automation
35

Hi again thanks I got the wifi shield working and reads and graphs the sensors thank you for that needed the libraries

I do hope your ethernet shield is WIZ5100 based........

Yes it is!
Now I am trying out the ethernet shield but this doesnt connect its fairly similar code to the wifi

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

// MAC address for your Ethernet shield
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };

// Your Cosm key to let you upload data
char cosmKey[] = "YOUR_COSM_API_KEY";

// Analog pin which we're monitoring (0 and 1 are used by the Ethernet shield)
int sensorPin = 2;

// Define the strings for our datastream IDs
char sensorId[] = "sensor_reading";
CosmDatastream datastreams[] = {
  CosmDatastream(sensorId, strlen(sensorId), DATASTREAM_FLOAT),
};
// Finally, wrap the datastreams into a feed
CosmFeed feed(15552, datastreams, 1 /* number of datastreams */);

EthernetClient client;
CosmClient cosmclient(client);

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  
  Serial.println("Starting single datastream upload to Cosm...");
  Serial.println();

  while (Ethernet.begin(mac) != 1)
  {
    Serial.println("Error getting IP address via DHCP, trying again...");
    delay(15000);
  }
}

void loop() {
  int sensorValue = analogRead(sensorPin);
  datastreams[0].setFloat(sensorValue);

  Serial.print("Read sensor value ");
  Serial.println(datastreams[0].getFloat());

  Serial.println("Uploading it to Cosm");
  int ret = cosmclient.put(feed, cosmKey);
  Serial.print("cosmclient.put returned ");
  Serial.println(ret);

  Serial.println();
  delay(15000);
}

obviously i add all the information that is needed to be added
so
In the serial display it now showing Error getting IP address via DHCP, trying again...
any solution to this would be great