Energy monitor

With this project you can monitor your energy usage and create real-time stats.

Needed

• Arduino
• Ethernet shield
• Light Sensor
• Apache, PHP and Mysql server

Code

/*
 *
Circuit:
 * Ethernet shield attached to pins 10, 11, 12, 13
 * input light sensor to analog pin 0
 *
 
*/
 
#include "meterkast.h"
#include 
#include 
 
 
 
// Enter a MAC address and IP address for your controller below.
// The IP address will be dependent on your local network:
byte mac[] = {  0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
byte ip[] = { 192,168,0,177 };
byte gw[] = {192,168,0,254};
byte subnet[] = {255,255,255,0};
byte server[] = { 192,168,0,254 }; // server
 
// Initialize the Ethernet client library
// with the IP address and port of the server
// that you want to connect to (port 80 is default for HTTP):
Client client(server, 80);
 
int waitSecondsForSend = 60; //1 minute
int cycleSeconds=0;
int cycleWait=5;
int lightThresshold=600; //minimaal analoge waarde voor licht
int lightLowThressholdCounter=1; // vanaf halve seconde flits
int lightHighThressholdCounter=3; // tot 1 sec = flits
int cycleCounter=0;
int pulseCounter=0;
int lightCounter=0;//aantal cycles met licht
boolean lightActive =false;
 
void setup() {
 
        // start the serial library:
        Serial.begin(9600);
 
        // start the Ethernet connection:
        Ethernet.begin(mac, ip, gw, subnet);
        // give the Ethernet shield a second to initialize:
        delay(1000);
        if (client.connect()) {
                Serial.println("ethernet connected");
        } else {
                // if you didn’t get a connection to the server:
                Serial.println("ethernet connection failed");
        }
 
 
        // if you get a connection, report back via serial:
 
}
 
void loop() {
  int sensorValue = analogRead(A0);
 
  if (sensorValue > lightThresshold){
          lightCounter++;
  } else {
          if(lightCounter > 5 && lightCounter < 10 ){
                  Serial.print("light pulse gevonden ");
                  Serial.println (lightCounter);
                  pulseCounter++;
 
                  if (cycleSeconds >= waitSecondsForSend){
                          if(!client.connected()){
                                          client.stop();
                                        if (client.connect()) {
                                                Serial.println("ethernet connected");
                                        } else {
                                                // if you didn’t get a connection to the server:
                                                Serial.println("ethernet connection failed");
                                        }
                          }
                          if (client.connected()) {
                                  Serial.print ("Verzenden van data, aantal pulsen: ");
                                  Serial.println (pulseCounter);
                                  // Make a HTTP request:
                                  client.print("GET /arduino/meterkast.php?pulse=");
                                  client.print(pulseCounter);
                                  client.println(" HTTP/1.0");
                                  client.println();
                          } else {
                                  Serial.print ("Niet Verzendon van data, aantal pulsen: ");
                                  Serial.println (pulseCounter);
 
                          }
                          //altijd resetten
                          cycleSeconds=0;
                          pulseCounter=0;
                  }
 
          }
 
          lightCounter=0;
          lightActive=false;
  }
 
  //clear data
  if (client.available()) {
      char c = client.read();
      //Serial.print(c);
  }
 
  //debug
  //Serial.println(sensorValue, DEC);
 
  //counting
  cycleCounter = cycleCounter+cycleWait;
  if (cycleCounter == 1000){
          cycleSeconds++;
          cycleCounter=0;
 
          //debug
          //if(cycleSeconds==10){
          //lightCounter=8;
          //pulseCounter=5;
          //}
          //Serial.println (cycleSeconds);
  }
 
  //wait a little bit
   delay(cycleWait);
 
 
 }