#include <LiquidCrystal.h>
#define prescaler 19.5
#define offset 512.0 // bpenentuan nilai 0 ampere di ACS
#include "U8glib.h"

U8GLIB_SSD1306_128X64 u8g(U8G_I2C_OPT_DEV_0 | U8G_I2C_OPT_NO_ACK | U8G_I2C_OPT_FAST); // Fast I2C / TWI

int progress = 0;

#include <LiquidCrystal.h>
#define prescaler 19.5
#define offset 510.0 // bpenentuan nilai 0 ampere di ACS

const int relay1 = 3; //pin3
const int relay2 = 2; //pin2
int relayON = LOW; //relay nyala
int relayOFF = HIGH; //relay mati
int button1 = 4;
int button2 = 8;

const int analogIn = A1;//Pin ACS
int mVperAmp = 185;
float Vraw = 0.0;
float Iraw = 0.0;
float Vacs = 0;
float Vsamp = 0.0;
float Isamp = 0.0;
float Vaverage = 0.0;
float Iaverage = 0.0;
float Vin = 0.0;
float Iin = 0.0;
double Voltage = 0;
double Amps = 0;
int analogInput = A0;//Pin sensor tegangan
int value = 0;
float soc1 = 100;
float soc2 = 60;
float soc_batt;

void setup() {
  Serial.begin(9600);
  pinMode(relay1, OUTPUT);
  pinMode(relay2, OUTPUT);
  pinMode(button1, INPUT);
  pinMode(button2, INPUT);
  digitalWrite(relay1, relayOFF);
  digitalWrite(relay2, relayOFF);

  pinMode(analogInput, INPUT);
  pinMode(analogIn, INPUT);

  delay (2000);

}
void loop() {

  //digitalWrite(relay1, relayON);
  //digitalWrite(relay2, relayOFF);
  //delay(10000);

 /* Vsamp = 0;
  Isamp = 0;
  for (int x = 0; x < 1000; x++)
  {
    Vraw = analogRead(analogInput);
    Iraw = analogRead(analogIn);
    Vsamp = Vsamp + Vraw;
    Isamp = Isamp + Iraw;
  }
  Vaverage = Vsamp / 1000;
  Iaverage = Isamp / 1000;
  Vin = ((Vaverage * 5.0) / 1024.0) / 0.2;
  //Vacs = ( Iaverage / 1024.0)* 5000;
  //Iin = (( Vacs - offset)/mVperAmp);
  Iin = (( Iaverage * (5.0 / 1024.0)) - offset * 5.0 / 1024.0) / (185.0 / 1024.0);
  {*/

    
      Serial.print("pengisian");
      digitalWrite(relay1, relayON);
      digitalWrite(relay2, relayOFF);
      Vsamp = 0;
      Isamp = 0;
      for (int x = 0; x < 1000; x++)
      {
        Vraw = analogRead(analogInput);
        Iraw = analogRead(analogIn);
        Vsamp = Vsamp + Vraw;
        Isamp = Isamp + Iraw;
      }
      Vaverage = Vsamp / 1000;
      Iaverage = Isamp / 1000;
      Vin = ((Vaverage * 5.0) / 1024.0) / 0.2;
      //Vacs = ( Iaverage / 1024.0)* 5000;
      //Iin = (( Vacs - offset)/mVperAmp);
      Iin = (( Iaverage * (5.0 / 1024.0)) - offset * 5.0 / 1024.0) / (185.0 / 1024.0);

      //Vpengukuran = Vin * 0,6;
      //value = Vin/(Res2/Res1+Res2);
      // //Perhitungan Nilai SOC
      soc1 = soc1 - ((abs (Iin)) * 100 / (1.5 * 3600));
      soc_batt = soc1 - ((abs (Iin)) * 100) / (1.5 * 3600);
      Serial.print("V = ");
      Serial.print(Vin, 3);
      Serial.print("\t");
      Serial.print("I = ");
      Serial.print(abs (Iin) * 0.1, 3);
      Serial.print("\t");
      Serial.print("SOC = ");
      Serial.print(soc_batt, 3);
      Serial.println("%");
      delay(10000);
    
  
  
  
  /*else if (Vin < 5.0){
    digitalWrite(relay1, relayOFF);
    digitalWrite(relay2, relayON);
    }
    Serial.print("V = ");
    Serial.print(Vin, 3);
    Serial.print("\t");
    Serial.print("I = ");
    Serial.print(abs (Iin) * 0.1, 3);
    Serial.print("\t");
    Serial.print("SOC = ");
    Serial.print(soc_batt, 3);
    Serial.println("%");
    delay(10000);*/





 u8g.firstPage();
  do {
    u8g.drawStr(0, 10, "Tegangan :");  
    u8g.setPrintPos(70, 10);
    u8g.print(Vin, 3);
    u8g.print("  V");
    
    u8g.drawStr(0, 25, "Arus       :");
    u8g.setPrintPos(70, 25);
    u8g.print(Iin, 3);
    u8g.print("  A");

    u8g.drawFrame(0, 35, 55, 10);
    u8g.drawBox(2.5, 38, progress, 5);
    u8g.drawBox(55, 38, 3, 5);

    u8g.setPrintPos(70, 45);
    u8g.print(soc_batt, 3);
    u8g.print("%");

u8g.drawStr(0, 62, "-------------------");
  } while ( u8g.nextPage() );
delay(1000);

  if (progress < 55) {
    progress = soc_batt/2;
  } else {
    progress = 0;
  }

}