Arduino/PZEM_Ecran/PZEM_Ecran.ino

#include <PZEM004Tv30.h>

/////////////////////
// Domoticz Classe
/////////////////////
    
#include "Domoticz.h"

Domoticz domo("192.168.1.3", "81", "Livebox-37cc", "8A6060920A8A86896F770F2C47");


/* Use software serial for the PZEM
 * Pin 11 Rx (Connects to the Tx pin on the PZEM)
 * Pin 12 Tx (Connects to the Rx pin on the PZEM)
*/
// ARduino
//PZEM004Tv30 pzem(11, 12);

// ESP
PZEM004Tv30 pzem(D5, D6);

#include <Wire.h>  // This library is already built in to the Arduino IDE
#include <LiquidCrystal_I2C.h> //This library you can add via Include Library > Manage Library > 
//LiquidCrystal_I2C lcd(0x3F, 20, 4);
LiquidCrystal_I2C lcd(0x27,16,2);  // set the LCD address to 0x27 for a 16 chars and 2 line display

const int PUISSANCE_RADIATEUR = 750;

const char* ssid     = "Livebox-37cc";
const char* password = "8A6060920A8A86896F770F2C47";

IPAddress gateway(192, 168, 1, 1);
IPAddress subnet(255, 255, 0, 0);
IPAddress DNS(192, 168, 1, 1);

void setup() {
  Serial.begin(115200);
    lcd.init();   // initializing the LCD
  lcd.noBacklight(); // Enable or Turn On the backlight 
  lcd.setCursor(0, 0);
  lcd.print("Init Wifi");
  String macId = domo.generateKey();
  IPAddress ip = domo.getIP(macId);

   domo.initWifiStatic(ip, gateway, subnet, DNS);

  delay(300);
  lcd.setCursor(0, 1);      
  lcd.print("-----------------------"); // Start Print Test to Line 2
  pzem.resetEnergy();
  delay(300);
  lcd.clear();

}
int boucle = 0;
void loop() {
    boucle ++;
    lcd.setCursor(0, 0);
    float voltage = pzem.voltage();
    if( !isnan(voltage) ){
        Serial.print("Voltage: "); Serial.print(voltage); Serial.println("V");
        //lcd.print(String(voltage,1) + " V "); 

    } else {
        Serial.println("Error reading voltage");
    }

    float current = pzem.current();
    if( !isnan(current) ){
        Serial.print("Current: "); Serial.print(current); Serial.println("A");
       // lcd.print(String(current,1) + "A "); 

    } else {
        Serial.println("Error reading current");
    }
    float pf = pzem.pf();
    float power = pzem.power();

    if( !isnan(pf) ){
        Serial.print("PF: "); Serial.println(pf);
        lcd.print(String(pf,3) + "pf ");
        if (pf != 0) { 
          lcd.print(String(power / pf,0) + "Wa"); 
        }
    } else {
        Serial.println("Error reading power factor");
    }    
    
    lcd.setCursor(0, 1);
    if( !isnan(power) ){
        Serial.print("Power: "); Serial.print(power); Serial.println("W");

        if (pf > 0) {
          lcd.print("+" + String(power,1) + "W "); 
        }
        else {
          lcd.print("-" + String(power,1) + "Wa"); 
        }
        if (boucle > 10) {
          printInfo(power);
          boucle = 0;
        }
        

    } else {
        Serial.println("Error reading power");
        if (boucle > 10) {
          printInfo(0);
          boucle = 0;
        }
    }
    

    float energy = pzem.energy();
    if( !isnan(energy) ){
        if (energy < 1000) {
          lcd.print(String(energy * 1000,0) + "Wh ");           
        }
        else {
          lcd.print(String(energy,1) + "kWh "); 
        }
        Serial.print("Energy: "); 
        Serial.print(energy,3); 
        Serial.println("kWh");
    } else {
        Serial.println("Error reading energy");
    }

    float frequency = pzem.frequency();
    if( !isnan(frequency) ){
        Serial.print("Frequency: "); Serial.print(frequency, 1); Serial.println("Hz");
    } else {
        Serial.println("Error reading frequency");
    }

    // pf très proche ou égal à 0 ==> début d'injection
//    if(!isnan(pf) && pf < 0.01 && power > 10){
//        int level = power / (PUISSANCE_RADIATEUR / 100);
//        
//        Serial.println("début injection " + level);
//    }


    Serial.println();
    delay(210);
}

void printInfo(double value)
{
  // Domoticz format /json.htm?type=command&param=udevice&idx=IDX&nvalue=0&svalue=TEMP;HUM;HUM_STAT;BAR;BAR_FOR

  boolean connected = domo.connect();
  
  if (connected) {
    String svalue = String(value);
    Serial.println(svalue);
    domo.executeJson("/json.htm?type=command&param=udevice&idx=1138", svalue, "0");
    domo._client.stop();
    delay(200);
  }

  Serial.print("Time = ");
  Serial.println(millis());

   delay(200);
}