ats.ino

#include <PZEM004Tv30.h>
#include <SoftwareSerial.h>


#define MIN_TRIGGER_VOLTAGE = 120.0
#define DEBOUNCE = 10000
#define POWER_RELAY_1 = 2
#define POWER_RELAY_2 = 13
#define POWER_RELAY_TYPE = "ACTIVE_LOW" // ACTIVE_LOW or ACTIVE_HIGH

SoftwareSerial pzemSWSerial(4, 5); //rx tx 4 5
PZEM004Tv30 pzem(pzemSWSerial);

SoftwareSerial pzemSWSerial2(12, 14); //rx tx 12 14
PZEM004Tv30 pzem2(pzemSWSerial2);


void setup() {
    /* Debugging serial */
    Serial.begin(115200);
    pinMode(POWER_RELAY_1, OUTPUT);
    pinMode(POWER_RELAY_2, OUTPUT);
    digitalWrite(POWER_RELAY_1, HIGH);
    digitalWrite(POWER_RELAY_2, HIGH);
}


void switchPower()

void loop() {

    // Read the data from the sensor1
    float voltage = pzem.voltage();
    float current = pzem.current();
    float power = pzem.power();
    float energy = pzem.energy();
    float frequency = pzem.frequency();
    float pf = pzem.pf();


     // Read the data from the sensor2
    float voltage2 = pzem2.voltage();
    float current2 = pzem2.current();
    float power2 = pzem2.power();
    float energy2 = pzem2.energy();
    float frequency2 = pzem2.frequency();
    float pf2 = pzem2.pf();


   if (voltage > MIN_TRIGGER_VOLTAGE && voltage2 > MIN_TRIGGER_VOLTAGE) {
    //  Power is available on both line
    Serial.println("Power is available on both line");
    
   }

   if (voltage > MIN_TRIGGER_VOLTAGE && voltage2 < MIN_TRIGGER_VOLTAGE) {
     digitalWrite(POWER_RELAY_1, LOW);
     digitalWrite(POWER_RELAY_2, HIGH);
   } 

   if (voltage2 > MIN_TRIGGER_VOLTAGE && voltage1 < MIN_TRIGGER_VOLTAGE) {
     digitalWrite(POWER_RELAY_1, HIGH);
     digitalWrite(POWER_RELAY_2, LOW);
   } 
    
}