#include<Wire.h>
#include <LiquidCrystal_I2C.h>

#define VOLTAGE_SENSOR_PIN 39   // Analog pin for the voltage sensor
LiquidCrystal_I2C lcd(0x27, 16, 2);

#define ACS712_PIN 34             // Analog pin for the ACS712 sensor
#define ACS712_ADDRESS 0x40       // Address of the ACS712 sensor


void setup() 
{
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(VOLTAGE_SENSOR_PIN, INPUT);
  pinMode(ACS712_PIN, INPUT);
  lcd.init();
   // Turn on the LCD backlight
   lcd.backlight();
   // Put text on the LCD
  // lcd.print("EV Batt Test");

}

void loop() 
{
  // put your main code here, to run repeatedly:
    int sensorValueVoltage = analogRead(VOLTAGE_SENSOR_PIN);
    

  // Convert the analog value to voltage (assuming 5V reference)
    float voltageBattery = (sensorValueVoltage / 1023.0) * 5.0;
    float overflowThreshold = 14.0;    // Set your overflow threshold voltage here
    float lowBatteryThreshold = 10.0;  // Set your low battery threshold voltage here
    float Battery = (12.0, 13.0);  // Set your Normal battery  voltage here
    lcd.setCursor(0, 0);
    lcd.print("Batt_Vtg: ");
    lcd.print(voltageBattery , 2);
    lcd.print(" V");
    Serial.print("Batt_Voltage: ");
    Serial.print(voltageBattery , 2);
    Serial.println(" V ");
  

    int sensorValueACS = analogRead(ACS712_PIN);
    // Convert the analog value to voltage
    float voltageCurrent = sensorValueACS * (5.0 / 1023.0);

    // Convert voltage to current using the ACS712 sensitivity (100mV/A)
    float current = voltageCurrent / 0.1; // 100mV per A

  lcd.setCursor(0, 1);
  lcd.print("Current: ");
  lcd.print(current, 2);
  lcd.print(" A");

  // Display current on Serial Monitor
  Serial.print("Current: ");
  Serial.print(current);
  Serial.println(" A");
  delay(1000);
}