// Simple Two Arduino Communication
// Change this value to select which Arduino to program:
// 1 = Sender, 2 = Receiver
#define ARDUINO_BOARD 1

#if ARDUINO_BOARD == 1
// ========== SENDER ==========

struct DataPLTS {
  float Vtotal;
  float Itotal;
  uint8_t SOCtotal;
  uint8_t SOC1;
  float V[3];
  float I1;
  uint8_t relay[3];
};

DataPLTS data;

void setup() {
  Serial.begin(115200);
  //Serial1.begin(9600); // komunikasi ke Mega RX via Serial1 (TX1/RX1)
  
  // Isi data dummy
  data.Vtotal = 50.9;
  data.Itotal = -12.5;
  data.SOCtotal = 89;
  data.SOC1 = 98;
  data.V[0] = 3.232;
  data.V[1] = 3.112;
  data.V[2] = 3.333;
  data.I1 = -3.0;
  data.relay[0] = 1;
  data.relay[1] = 0;
  data.relay[2] = 1;
}

void loop() {
  //Serial1.write((uint8_t*)&data, sizeof(data)); // kirim data biner ke Mega RX
  Serial.print("TX -> Mengirim "); 
  Serial.print(sizeof(data)); 
  Serial.println(" byte ke RX...");
  delay(2000);
}

#else
// ========== RECEIVER ==========
struct DataPLTS {
  float Vtotal;
  float Itotal;
  uint8_t SOCtotal;
  uint8_t SOC1;
  float V[3];
  float I1;
  uint8_t relay[3];
};

DataPLTS data;

void setup() {
  Serial.begin(115200);
  Serial1.begin(9600); // terima data dari TX
}

void loop() {
  if (Serial1.available() >= sizeof(data)) {
    Serial1.readBytes((uint8_t*)&data, sizeof(data));

    Serial.println("=== Data diterima dari Mega TX ===");
    Serial.print("Vtotal = "); Serial.println(data.Vtotal);
    Serial.print("Itotal = "); Serial.println(data.Itotal);
    Serial.print("SOC total = "); Serial.print(data.SOCtotal); Serial.println("%");
    Serial.print("SOC1 = "); Serial.print(data.SOC1); Serial.println("%");
    
    for (int i = 0; i < 3; i++) {
      Serial.print("V"); Serial.print(i + 1); Serial.print(" = ");
      Serial.println(data.V[i]);
    }

    Serial.print("I1 = "); Serial.println(data.I1);

    for (int i = 0; i < 3; i++) {
      Serial.print("Relay "); Serial.print(i + 1);
      Serial.print(" = "); Serial.println(data.relay[i] ? "ON" : "OFF");
    }

    Serial.println();
  }
}
#endif