Tutorial pengunaan Sensor Ampere Voltage PZEM-004T pada ESP 32

#include <Arduino.h>

#include <PZEM004Tv30.h>

//sensor ini menggunakan pin hardware serial (pin RX dan TX asli)
#if !defined(PZEM_RX_PIN) && !defined(PZEM_TX_PIN)
#define PZEM_RX_PIN 16
#define PZEM_TX_PIN 17
#endif
 
#if !defined(PZEM_SERIAL)
#define PZEM_SERIAL Serial2
#endif
#if defined(ESP32)
PZEM004Tv30 pzem(PZEM_SERIAL, PZEM_RX_PIN, PZEM_TX_PIN);
#elif defined(ESP8266)
#else
PZEM004Tv30 pzem(PZEM_SERIAL);
#endif
 
 // Read the data from the sensor
    float voltage = 0; 
    float current = 0;
    float power =  0;
    float energy = 0;
    float frequency = 0;
    float pf = 0;
 
 


void get_sensor_PZEM(){
 // Print the custom address of the PZEM
    Serial.print("Custom Address:");
    Serial.println(pzem.readAddress(), HEX);
 
    // Read the data from the sensor
    voltage = pzem.voltage();
    current = pzem.current();
    power = pzem.power();
    energy = pzem.energy();
    frequency = pzem.frequency();
    pf = pzem.pf();
 
    // Check if the data is valid
    if(isnan(voltage)){
        Serial.println("Error reading voltage");
    } else if (isnan(current)) {
        Serial.println("Error reading current");
    } else if (isnan(power)) {
        Serial.println("Error reading power");
    } else if (isnan(energy)) {
        Serial.println("Error reading energy");
    } else if (isnan(frequency)) {
        Serial.println("Error reading frequency");
    } else if (isnan(pf)) {
        Serial.println("Error reading power factor");
    } else {
 
        // Print the values to the Serial console
        Serial.print("Voltage: ");      Serial.print(voltage);      Serial.println("V");
        Serial.print("Current: ");      Serial.print(current);      Serial.println("A");
        Serial.print("Power: ");        Serial.print(power);        Serial.println("W");
        Serial.print("Energy: ");       Serial.print(energy,3);     Serial.println("kWh");
        Serial.print("Frequency: ");    Serial.print(frequency, 1); Serial.println("Hz");
        Serial.print("PF: ");           Serial.println(pf);
 
    }
}


void setup()
{
Serial.begin(9600);

}
void loop(){
get_sensor_PZEM();
delay(500);


}