PZEM 04 Wemos D1 to DOMOTICZ With Oled

New project started : PZEM Multi modules with Oled and all data sent to Domoticz.

Programmed in IDE ARDUINO !! NO TASMOTA or ESP EASY !!!

3 Modules to monitor 3 circuits

And also a reset button on the device to reset the total kWh counter

First thing to do !! You need to modify your PZEM module to work with Wemos D1

Pzem add resistor from 1K between RX en 5v. Important PZEM must be connected to 3.3 V

In the code you need only to change this value, eg 0X01 , 0X02, 0X03 ! These are the codes i used for my project

So before you can use this, you must program each module seperately !! Dont't connect more modules at the same time if you want to program them !

// Use this to set the PZEM adress, only one module may be connected to the Wemos D1

#include <Arduino.h>

#include <PZEM004Tv30.h>

PZEM004Tv30 pzem(D2, D1); // (RX,TX)connect to TX,RX of PZEM

// Change settings below to the adress you want to sent to the module

#define SET_ADDRESS 0x04

void setup()

{

Serial.begin(115200);

}

void loop() {

static uint8_t addr = SET_ADDRESS;

// Set the custom address

Serial.print("Setting address to: 0x");

Serial.println(addr, HEX);

if(!pzem.setAddress(addr))

{

// Setting custom address failed. Probably no PZEM connected

Serial.println("Error setting address.");

} else {

// Print out the new custom address

Serial.print("Current address: 0x");

Serial.println(pzem.readAddress(), HEX);

Serial.println();

}

delay(5000);

}

#include <Arduino.h>

#include<Wire.h>

#include <PZEM004Tv30.h>

#include <ESP8266WiFi.h>

#include <ESP8266WiFiMulti.h>

#include <ESP8266HTTPClient.h>

#include <WiFiClient.h>

#include <U8g2lib.h>

//oled display setup

U8G2_SH1106_128X64_NONAME_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);

// WiFi settings van je eigen netwerk

#define wifi_ssid "+++++++++"

#define wifi_password "jcdsdfsdf2"

// HTTP Domoticz settings

const char* host = "192.168.1.19";

const int port = 8080;

HTTPClient http;

// PZEM setup bij meerdere moet het adress ingevuld zijn ! 0x..

PZEM004Tv30 pzem(D5, D6,0x01); // (RX,TX)connect to TX,RX of PZEM

PZEM004Tv30 pzem1(D5, D6,0x02); // (RX,TX)connect to TX,RX of PZEM

PZEM004Tv30 pzem2(D5, D6,0x03); // (RX,TX)connect to TX,RX of PZEM

void setup()

{

Serial.begin(115200);

// setup_wifi();

// pzem.resetEnergy();

Serial.println("startup");

// display setup

u8g2.begin();

u8g2.enableUTF8Print();

// wifi i verbinding oproepen

setup_wifi();

}

void setvar()

{

//pzem1 waardes voor naar domoticz te zenden

// allen van PZEM1 sturen we volt frequentie en pf door voor de andere alleen power en energy

//pzem1 0x01

int idxvar1 = (294); // domoticz IDX for VAR1 power

int VAR1 = pzem.power();

int idxvar2 = (295);

float VAR2 = pzem.voltage();

int idxvar3 = (296);

float VAR3 = pzem.energy();

int idxvar4 = (296);

float VAR4 = pzem.frequency();

int idxvar5 = (296);

float VAR5 = pzem.pf();

//pzem 0x02

int idxvar6 = (294); // domoticz IDX for VAR1 power

int VAR6 = pzem1.power();

int idxvar7 = (296);

float VAR7 = pzem1.energy();

//pzem 0x03

int idxvar8 = (294); // domoticz IDX for VAR1 power

int VAR8 = pzem2.power();

int idxvar9 = (296);

float VAR9 = pzem2.energy();

Serial.println(VAR1);

Serial.println(VAR2);

Serial.println(VAR3);

Serial.println(VAR4);

Serial.println(VAR5);

Serial.println(VAR6);

Serial.println(VAR7);

Serial.println(VAR8);

Serial.println(VAR9);

// Here is the Json format that Domoticz expects

// /json.htm?type=command&param=udevice&idx=IDX&nvalue=0&svalue=TEMP

// VAR1 versturen

String URLVAR1 = "/json.htm?type=command&param=udevice&idx=";

URLVAR1 += String(idxvar1); // IDX van je Device in domoticz

URLVAR1 += "&nvalue=0&svalue=";

URLVAR1 += String(VAR1); // dit is de waarde die naar de IDX gestuurd word in domoticz

// VAR 2 versturen

String URLVAR2 = "/json.htm?type=command&param=udevice&idx=";

URLVAR2 += String(idxvar2); // IDX van je Device in domoticz

URLVAR2 += "&nvalue=0&svalue=";

URLVAR2 += String(VAR2); // dit is de waarde die naar de IDX gestuurd word in domoticz

// VAR 3 versturen

String URLVAR3 = "/json.htm?type=command&param=udevice&idx=";

URLVAR3 += String(idxvar3); // IDX van je Device in domoticz

URLVAR3 += "&nvalue=0&svalue=";

URLVAR3 += String(VAR3); // dit is de waarde die naar de IDX gestuurd word in domoticz

sendToDomoticz(URLVAR1);

sendToDomoticz(URLVAR2);

sendToDomoticz(URLVAR3);

}

void loop()

{

setvar(); // variable zenden naar domotics

// wait for WiFi connection

//main energy meter

Serial.println();

Serial.print("meter 1: ");

float voltage = pzem.voltage();

float current = pzem.current();

int power = pzem.power(); // int omdat we geen comma getallen willen bij Watt

float energy = pzem.energy();

float frequency = pzem.frequency();

float pf = pzem.pf();

Serial.print(voltage);

Serial.print(" volt ");

Serial.print(current);

Serial.print(" Stroom ");

Serial.print(power);

Serial.print(" Watt ");

Serial.print(energy);

Serial.print(" Energy total ");

Serial.print(frequency);

Serial.print(" HZ ");

Serial.print(pf);

Serial.print(" pf ");

Serial.println();

Serial.print("meter 2: ");

float voltage1 = pzem1.voltage();

float current1 = pzem1.current();

int power1 = pzem1.power(); // int omdat we geen comma getallen willen bij Watt

float energy1 = pzem1.energy();

float frequency1 = pzem1.frequency();

float pf1 = pzem1.pf();

Serial.print(voltage1);

Serial.print(" volt ");

Serial.print(current1);

Serial.print(" Stroom ");

Serial.print(power1);

Serial.print(" Watt ");

Serial.print(energy1);

Serial.print(" Energy total ");

Serial.print(frequency1);

Serial.print(" HZ ");

Serial.print(pf1);

Serial.print(" pf ");

Serial.println();

Serial.print("meter 3: ");

float voltage2 = pzem2.voltage();

float current2 = pzem2.current();

int power2 = pzem2.power(); // int omdat we geen comma getallen willen bij Watt

float energy2 = pzem2.energy();

float frequency2 = pzem2.frequency();

float pf2 = pzem1.pf();

Serial.print(voltage2);

Serial.print(" volt ");

Serial.print(current2);

Serial.print(" Stroom ");

Serial.print(power2);

Serial.print(" Watt ");

Serial.print(energy2);

Serial.print(" Energy total ");

Serial.print(frequency2);

Serial.print(" HZ ");

Serial.print(pf2);

Serial.print(" pf ");

// u8g2.clearDisplay();

u8g2.setDisplayRotation(U8G2_R1);

u8g2.setFlipMode(0);

u8g2.firstPage();

do {

// u8g2.setFont(u8g2_font_cube_mel_tr);

//lokaal ip nummer weergeven zo zien we als we verbinding hebben met ons netwerk

u8g2.setFont(u8g2_font_5x7_tf);

// u8g2.drawStr(4,8,"Inj");

u8g2.setCursor(0, 6);

u8g2.println(WiFi.localIP());

/*

Description: Draw a line between two points. This procedure will use the current color (setDrawColor).

Arguments:

u8g2 : Pointer to the u8g2 structure (C interface only).

x0: X-position of the first point.

y0: Y-position of the first point.

x1: X-position of the second point.

y1: Y-position of the second point.

*/

u8g2.drawLine(0, 7, 118, 7);

// u8g2.setFont(u8g2_font_7x13_tr);

//u8g2.setFont(u8g2_font_luBS18_tf);

u8g2.setFont(u8g2_font_6x10_tr);

u8g2.setCursor(0, 20);

u8g2.print(power);

u8g2.print(" W");

// u8g2.setFont(u8g2_font_6x10_tr);

u8g2.setCursor(0, 30);

u8g2.print(pzem.energy());

u8g2.print(" kWh");

//u8g2.setFont(u8g2_font_7x13_tr);

u8g2.setCursor(0, 42);

u8g2.print(power);

u8g2.print(" W");

// u8g2.setFont(u8g2_font_6x10_tr);

u8g2.setCursor(0, 52);

u8g2.print(pzem.energy());

u8g2.print(" kWh");

//u8g2.setFont(u8g2_font_7x13_tr);

u8g2.setCursor(0, 64);

u8g2.print(power);

u8g2.print(" W");

//u8g2.setFont(u8g2_font_6x10_tr);

u8g2.setCursor(0, 74);

u8g2.print(pzem.energy());

u8g2.print(" kWh");

u8g2.setCursor(0, 104);

u8g2.print(voltage);

u8g2.print(" V");

u8g2.setCursor(0, 114);

u8g2.print(frequency);

u8g2.print(" Hz");

u8g2.setCursor(0, 124);

u8g2.print(pf);

u8g2.print(" pf");

// u8g2.setCursor(0, 100);

//u8g2.print(pzem.voltage());

//u8g2.print(" V");

//u8g2.setFont(u8g2_font_luBS18_tf);

/*u8g2.setFont(u8g2_font_emoticons21_tr);

u8g2.drawStr(0,22,"3");//smile face happy

u8g2.setFont(u8g2_font_emoticons21_tr);

u8g2.drawStr(0,56,"&");//smile face angry

*/

} while ( u8g2.nextPage() );

//delay(1000);

delay(5000);

}

//Connect to wifi

void setup_wifi()

{

delay(10);

u8g2.firstPage();

do {

//u8g2.setDisplayRotation(U8G2_R1);

// u8g2.setFont(u8g2_font_8x13_tr);

//u8g2.setFont(u8g2_font_luBS18_tf);

// u8g2.setFont(u8g2_font_6x13_tr);

u8g2.setFont(u8g2_font_6x10_tr);

u8g2.setCursor(0, 20);

u8g2.print(wifi_ssid);

Serial.println();

Serial.print("Connecting to ");

Serial.println(wifi_ssid);

WiFi.begin(wifi_ssid, wifi_password);

while (WiFi.status() != WL_CONNECTED)

{

delay(500);

Serial.print(".");

}

Serial.println("");

Serial.println("WiFi connection Established");

Serial.print("IP Adress : ");

Serial.print(WiFi.localIP());

u8g2.setFont(u8g2_font_6x10_tr);

//u8g2.setFont(u8g2_font_6x13_tr);

u8g2.setCursor(0, 35);

u8g2.println("IP Adress : ");

u8g2.setCursor(0, 50);

u8g2.println(WiFi.localIP());;

} while ( u8g2.nextPage() );

}

void sendToDomoticz(String URLVAR1)

{

Serial.print("Connecting to ");

Serial.println(host);

Serial.print("Requesting URLVAR1: ");

Serial.println(URLVAR1);

http.begin(host,port,URLVAR1);

int httpCode = http.GET();

if (httpCode)

{

if (httpCode == 200)

{

String payload = http.getString();

Serial.println("Domoticz response ");

Serial.println(payload);

}

}

Serial.println("closing connection");

http.end();

}

Youtube To See How To Config Domoticz

www.spiketech.be for al my projects