/*
 emonTx Shield 4 x CT + Voltage example

 An example sketch for the emontx Arduino shield module for
 CT and AC voltage sample electricity monitoring. Enables real power and Vrms calculations.

 Part of the openenergymonitor.org project
 Licence: GNU GPL V3

 Authors: Glyn Hudson, Trystan Lea
 Builds upon JeeLabs RF12 library and Arduino

 emonTx documentation: 	http://openenergymonitor.org/emon/modules/emontxshield/
 emonTx firmware code explination: http://openenergymonitor.org/emon/modules/emontx/firmware
 emonTx calibration instructions: http://openenergymonitor.org/emon/modules/emontx/firmware/calibration

 THIS SKETCH REQUIRES:

 Libraries in the standard arduino libraries folder:
	- JeeLib		https://github.com/jcw/jeelib
	- EmonLib		https://github.com/openenergymonitor/EmonLib.git

 Other files in project directory (should appear in the arduino tabs above)
	- emontx_lib.ino

*/

/*Recommended node ID allocation
------------------------------------------------------------------------------------------------------------
-ID-	-Node Type-
0	- Special allocation in JeeLib RFM12 driver - reserved for OOK use
1-4     - Control nodes
5-10	- Energy monitoring nodes
11-14	--Un-assigned --
15-16	- Base Station & logging nodes
17-30	- Environmental sensing nodes (temperature humidity etc.)
31	- Special allocation in JeeLib RFM12 driver - Node31 can communicate with nodes on any network group
-------------------------------------------------------------------------------------------------------------
*/

#define FILTERSETTLETIME 5000                                           //  Time (ms) to allow the filters to settle before sending data

const int CT1 = 1;
const int CT2 = 1;                                                      // Set to 0 to disable
const int CT3 = 1;
const int CT4 = 1;


#define freq RF12_868MHZ                                                // Frequency of RF12B module can be RF12_433MHZ, RF12_868MHZ or RF12_915MHZ. You should use the one matching the module you have.
const int nodeID = 10;                                                  // emonTx RFM12B node ID
const int networkGroup = 210;                                           // emonTx RFM12B wireless network group - needs to be same as emonBase and emonGLCD

#include <JeeLib.h>                                                     // Download JeeLib: http://github.com/jcw/jeelib
#include "EmonLib.h"
EnergyMonitor ct1,ct2,ct3, ct4;                                              // Create  instances for each CT channel

typedef struct { int power1, power2, power3, power4, Vrms;} PayloadTX;      // create structure - a neat way of packaging data for RF comms
PayloadTX emontx;

const int LEDpin = 9;                                                   // On-board emonTx LED

boolean settled = false;

void setup()
{
  Serial.begin(9600);
   //while (!Serial) {
    ; // wait for serial port to connect. Needed for Leonardo only

  Serial.println("emonTX Shield CT123 Voltage example");
  Serial.println("OpenEnergyMonitor.org");
  Serial.print("Node: ");
  Serial.print(nodeID);
  Serial.print(" Freq: ");
  if (freq == RF12_433MHZ) Serial.print("433Mhz");
  if (freq == RF12_868MHZ) Serial.print("868Mhz");
  if (freq == RF12_915MHZ) Serial.print("915Mhz");
 Serial.print(" Network: ");
  Serial.println(networkGroup);
  // }

  if (CT1) ct1.current(1, 60.606);                                     // Setup emonTX CT channel (ADC input, calibration)
  if (CT2) ct2.current(2, 60.606);                                     // Calibration factor = CT ratio / burden resistance
  if (CT3) ct3.current(3, 60.606);                                     // emonTx Shield Calibration factor = (100A / 0.05A) / 33 Ohms
  if (CT4) ct4.current(4, 60.606);

  if (CT1) ct1.voltage(0, 228.268, 1.7);                                // ct.voltageTX(ADC input, calibration, phase_shift) - make sure to select correct calibration for AC-AC adapter  http://openenergymonitor.org/emon/modules/emontx/firmware/calibration. Default set for Ideal Power adapter
  if (CT2) ct2.voltage(0, 228.268, 1.7);
  if (CT3) ct3.voltage(0, 228.268, 1.7);
  if (CT4) ct4.voltage(0, 228.268, 1.7);

  rf12_initialize(nodeID, freq, networkGroup);                          // initialize RFM12B
  rf12_sleep(RF12_SLEEP);

  pinMode(LEDpin, OUTPUT);                                              // Setup indicator LED
  digitalWrite(LEDpin, HIGH);


}

void loop()
{
  if (CT1) {
    ct1.calcVI(20,2000);                                                  // Calculate all. No.of crossings, time-out
    emontx.power1 = ct1.realPower;
    Serial.print(emontx.power1);
  }

  emontx.Vrms = ct1.Vrms*100;                                            // AC Mains rms voltage

  if (CT2) {
    ct2.calcVI(20,2000);                                                  // Calculate all. No.of crossings, time-out
    emontx.power2 = ct2.realPower;
    Serial.print(" "); Serial.print(emontx.power2);
  }

  if (CT3) {
    ct3.calcVI(20,2000);                                                  // Calculate all. No.of crossings, time-out
    emontx.power3 = ct3.realPower;
    Serial.print(" "); Serial.print(emontx.power3);
  }

   if (CT4) {
     ct4.calcVI(20,2000);                                                  // Calculate all. No.of crossings, time-out
    emontx.power4 = ct4.realPower;
    Serial.print(" "); Serial.print(emontx.power4);
  }

  Serial.print(" "); Serial.print(ct1.Vrms);

  Serial.println(); delay(100);

  // because millis() returns to zero after 50 days !
  if (!settled && millis() > FILTERSETTLETIME) settled = true;

  if (settled)                                                            // send data only after filters have settled
  {
    send_rf_data();                                                       // *SEND RF DATA* - see emontx_lib
    digitalWrite(LEDpin, HIGH); delay(2); digitalWrite(LEDpin, LOW);      // flash LED
    delay(2000);                                                          // delay between readings in ms
  }
}