Arduino: कंसोल के लिए बैटरी की परिभाषा और सूचना आउटपुट

void setup() {
  Serial.begin(9600);
  pinMode(A5, INPUT);
}

void loop() {
  float k = 2;
  float voltage = k*analogRead(A5);
}

void loop() {
  float k = 2/1024;
  float voltage = k*analogRead(A5);
}

  float k = 2*1.12;
  float voltage = k*4.5f/1024*analogRead(A5);

void loop() {
  float k = 2*1.12;
  float voltage = k*4.5f/1024*analogRead(A5);
  float chargeLevel_procents;
  float chargeLevel;
  float y;
  int z;

  //   

  float A_v = voltage; //
  float A_K = 0.3; // 
  static float A_y; // 
  
  A_y = A_y - A_K * (A_y - A_v);
}

  y = A_y / 8.4 * 100;
  
  chargeLevel_procents = y;
  chargeLevel = z;

if(chargeLevel_procents >= 0 && chargeLevel_procents < 33) {
    z = 1; // 1/3 
  }
  
  else if(chargeLevel_procents >= 33 && chargeLevel_procents < 66) {
    z = 2; // 2/3 
  }

  
  else if(chargeLevel_procents >= 66 && chargeLevel_procents <= 100) {
    z = 3; //  
  }

Serial.print("\t Voltage: ");
    Serial.print(A_y);
    Serial.print(" V ");
    Serial.print("\t Charge: ");
    if(z == 1) {
      Serial.print("■");
    }
    else if(z == 2) {
      Serial.print("■■");
    }
    else if(z == 3) {
      Serial.print("■■■");
    }
    else {
      Serial.print("ERROR");
    }
    Serial.print("\r\n");