#include <PZEM004Tv30.h>
#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
void setup()
{
Serial.begin(115200);
delay(100);
}
void read_pzem()
{
Serial.print(“Custom Address:”);
Serial.println(pzem.readAddress(), HEX);
// Read the data from the sensor
float voltage = pzem.voltage();
float current = pzem.current();
float power = pzem.power();
float energy = pzem.energy();
float frequency = pzem.frequency();
float pf = pzem.pf();
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 {
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);
}
Serial.println();
delay(2000);
}
void loop() {
read_pzem();
}
*หมายเหตุ ใน Arduino IDE คอมไพล์ไม่ผ่านให้แก้เครื่องหมาย ” ” ให้ถูกต้อง