22102102-BLD

// LIBRARY
#include <SD.h>
#include <Ethernet.h>
#include <TextFinder.h>

//// rtc lib
#include <SPI.h>
#include <Wire.h>

// pin definition
#define S1 A0
#define ACT1 5
#define LAMP 9

// SPI bus pin definition
const int  cs=8; //chip select

//#define SDS 4
//#define RTCS 8
//#define ETHS 10

// Syste Variable
File myFile;                  // SD file
int ave1;                     // avreaging variable
char filename[] = "L000.CSV";  // INIT LOCAL FILE NAME

// ==== CONFIGURABLE FROM SDCARD == //
int LOCATION_ID = 1;         // CONF 9
int DELAY_READ  = 1;         // CONF 10 (MIN)
int NSTEP = 4 ;              // CONF 11
int CHECK_SETTING = 5;       // CONF 12 (MIN)
int LOWER_LIMIT = 100;       // CONF 14 (VAL)
int ACT_PERIOD = 3;         // CONF 15 (SECOND)
// ==== END OF CONFIGURABLE PARAMS== //

// TIMER MILLIS
unsigned long lastReading, periodRead;
unsigned long lastCheck, periodCheck;

// pump flag notification
boolean lastConnected = false;
boolean ledState = 0;
int countAct = 0;

// NETWORK SETTINGS
byte mac[] = { 0x90, 0xA2, 0xDA, 0x00, 0x92, 0x5A };
byte ip[] = { 192, 168, 11, 221 };
byte dnsGw[] = { 192, 168, 11, 1 };
char remoteServer[] = "agrieye.host22.com";
IPAddress netmask(255,255,255,0);
EthernetClient client;
TextFinder finder (client);

/// ========== SETUP ======== ///
void setup() {
  Serial.begin(9600);

  // i/o pin definiton
  pinMode(S1, INPUT);
  pinMode(ACT1, OUTPUT);
  pinMode(LAMP, OUTPUT);

  //setup sd card
  sdCardSetup();

  // filename  generator from 0 - 999
  for(uint8_t i = 0; i < 1000 ; i++) {
      uint8_t j = i/10;
      filename[1] = j/10 + '0';
      filename[2] = j%10 + '0';
      filename[3] = i%10 + '0';
      if(!SD.exists(filename)) {
        break;
      }
  }

  // start the Ethernet connection:
  networkSetup();

  // RTC setup
  //RTC_init();

  // only when we need to resetup date and time in rtc device
  //SetTimeDate(11,12,13,14,15,16);
}

/// ====== END OF SETUP ====== ///


/// ====== LOOP SECTION ====== ///
void loop() {
  if (client.available()) {
    char c = client.read();
    Serial.print(c);
    }

  if(!client.connected() && lastConnected) {
    Serial.println("disc");
    client.stop();
    }

  // 1. READING SENSOR
  unsigned long timerReading = millis();
  periodRead = DELAY_READ;
  periodRead = periodRead*15*1000;
  if(timerReading - lastReading > periodRead) {
    lastReading = timerReading;

    // turn on the lamp
    digitalWrite(LAMP, HIGH);
    // read the sensor
    readSensor();

    // sending data to server
    if(!sendServer()) {
      // store data in sdcard
      Serial.print("file:");
      Serial.println(filename);

      // open files and write it
      myFile = SD.open(filename, FILE_WRITE);
      if(myFile) {
        /*
        myFile.print(now.year(), DEC);
        myFile.print('/');
        myFile.print(now.month(), DEC);
        myFile.print('/');
        myFile.print(now.day(), DEC);
        myFile.print(' ');
        myFile.print(now.hour(), DEC);
        myFile.print(':');
        myFile.print(now.minute(), DEC);
        myFile.print(':');
        myFile.print(now.second(), DEC);
        myFile.print(",");
        */
        myFile.print(LOCATION_ID);
        myFile.print(",");
        myFile.print(ave1);
        myFile.print(",0,0,0,0,0");
        myFile.print(",");
        myFile.println(ledState);
        myFile.close();
        Serial.println("svd");

      }
      else {
        Serial.println("err");
        myFile.close();
      }
    } else {
    // flaglastConnected
    lastConnected = client.connected();
    }

    // turn on the lamp
    digitalWrite(LAMP, LOW);
  }

   // status connection
   lastConnected = client.connected();
}

// FUNCTION
/// ========== Method and Function ========== //
// SDCARD SETUP METHOD
void sdCardSetup() {
  Serial.print("SD ");
  pinMode(10, OUTPUT);
  if(!SD.begin(4)) {
    Serial.println("x");
    digitalWrite(LAMP,HIGH);
  } else {
    Serial.println("ok");
  }
}

// NETWORK SETUP
void networkSetup() {
  Serial.print("netSet");
  Ethernet.begin(mac, ip, dnsGw, dnsGw, netmask);
}

// READSENSOR METHOD
void readSensor() {
  // Turn on lamp, for indicator
  Serial.print("re ");
  // reset teh ave value to 0
  ave1 = 0;

  // read each pin with n step
  for(int i=1; i<= NSTEP; i++)
    {
    // accumulate value or each sensor
    ave1 +=  analogRead(S1);
    }
  // averging data section
  Serial.print("av ");
  ave1 = ave1/NSTEP;
}

// SENDING DATA TO SERVER
boolean sendServer() {
   if(client.connect(remoteServer, 80)) {
      Serial.print("sn ");
      // make http request
      client.print("GET /feed/api.php?lid=");
      client.print(LOCATION_ID);
      client.print("&s1=");
      client.print(ave1);
      client.print("&s2=0&s3=0&s4=0&s5=0&s6=0&status=");
      client.print(ledState);
      client.print(" HTTP/1.1\n");
      client.print("Host: agrieye.host22.com\n");
      client.println("Connection: close");
      client.println();
      Serial.println("ok");
      return true;
   } else {
     Serial.println("x");
     lastConnected = client.connected();
     client.stop();
     return false;
   }
}

//=====================================
int RTC_init(){
  pinMode(cs,OUTPUT); // chip select
  // start the SPI library:
  SPI.begin();
  SPI.setBitOrder(MSBFIRST);
  SPI.setDataMode(SPI_MODE1); // both mode 1 & 3 should work
  //set control register
  digitalWrite(cs, LOW);
  SPI.transfer(0x8E);
  SPI.transfer(0x60); //60= disable Osciallator and Battery SQ wave @1hz, temp compensation, Alarms disabled
  digitalWrite(cs, HIGH);
  delay(10);
}

// setting date and time for rtc
int SetTimeDate(int d, int mo, int y, int h, int mi, int s){
  int TimeDate [7]={s,mi,h,0,d,mo,y};
  for(int i=0; i<=6;i++){
    if(i==3) i++;
    int b= TimeDate[i]/10;
    int a= TimeDate[i]-b*10;
    if(i==2){
       if (b==2) b=B00000010;
       else if (b==1) b=B00000001;
       }
    TimeDate[i]= a+(b<<4);

    digitalWrite(cs, LOW);
    SPI.transfer(i+0x80);
    SPI.transfer(TimeDate[i]);
    digitalWrite(cs, HIGH);
  }
}

// Read Time and Date
String ReadTimeDate(){
    String temp;
    int TimeDate [7]; //second,minute,hour,null,day,month,year
    for(int i=0; i<=6;i++){
        if(i==3)
            i++;
        digitalWrite(cs, LOW);
        SPI.transfer(i+0x00);
        unsigned int n = SPI.transfer(0x00);
        digitalWrite(cs, HIGH);
        int a=n & B00001111;
        if(i==2){
            int b=(n & B00110000)>>4; //24 hour mode
            if(b==B00000010)
                b=20;
            else if(b==B00000001)
                b=10;
            TimeDate[i]=a+b;
        }
        else if(i==4){
            int b=(n & B00110000)>>4;
            TimeDate[i]=a+b*10;
        }
        else if(i==5){
            int b=(n & B00010000)>>4;
            TimeDate[i]=a+b*10;
        }
        else if(i==6){
            int b=(n & B11110000)>>4;
            TimeDate[i]=a+b*10;
        }
        else{
            int b=(n & B01110000)>>4;
            TimeDate[i]=a+b*10;
            }
    }
    temp.concat(TimeDate[4]);
    temp.concat("/") ;
    temp.concat(TimeDate[5]);
    temp.concat("/") ;
    temp.concat(TimeDate[6]);
    temp.concat("     ") ;
    temp.concat(TimeDate[2]);
    temp.concat(":") ;
    temp.concat(TimeDate[1]);
    temp.concat(":") ;
    temp.concat(TimeDate[0]);
  return(temp);
}