#define segA 14
#define segB 27
#define segC 26
#define segD 25
#define segE 33
#define segF 32
#define segG 12

uint8_t numeros [10] 
{
  0b01111110, // 0
  0b00110000, // 1
  0b01101101, // 2
  0b01111001, // 3
  0b00110011, // 4
  0b01011011, // 5
  0b00011111, // 6
  0b01110010, // 7
  0b01111111, // 8
  0b01110011 // 9
};

#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2);

int led = 5;
int pot = 34;
int bverde = 4;
int bverme = 2;
bool leituraentrada = 0;
bool leiturasaida = 0;
uint8_t contador = 0;
String setpoint = "";
int sp = 0;

void setup() 
{
  pinMode(led, OUTPUT);
  pinMode(bverde, INPUT_PULLUP);
  pinMode(bverme, INPUT_PULLUP);
  pinMode(segA , OUTPUT);
  pinMode(segB , OUTPUT);
  pinMode(segC , OUTPUT);
  pinMode(segD , OUTPUT);
  pinMode(segE , OUTPUT);
  pinMode(segF , OUTPUT);
  pinMode(segG , OUTPUT);
  Serial.begin(115200);
  Serial.println("ESP32");
  
  lcd.init();
  lcd.backlight();
  lcd.setCursor(0,0);
  lcd.print ("SENAI CFP 1.01");
  lcd.setCursor(0,1);
  lcd.print("TEC.MECATRONICA");
  delay(1000);
  lcd.clear();
}

void loop() 
{
  leituraentrada = digitalRead(bverde);
  leiturasaida = digitalRead(bverme);
  digitalWrite(segA, numeros[contador] & 0b01000000);
  digitalWrite(segB, numeros[contador] & 0b00100000);
  digitalWrite(segC, numeros[contador] & 0b00010000);
  digitalWrite(segD, numeros[contador] & 0b00001000);
  digitalWrite(segE, numeros[contador] & 0b00000100);
  digitalWrite(segF, numeros[contador] & 0b00000010);
  digitalWrite(segG, numeros[contador] & 0b00000001);
  if (leituraentrada == LOW)
  {
    delay(500);
    contador++;
    Serial.println(contador);
  }
  else if (leiturasaida == LOW)
  {
    delay(500);
    contador--;
    Serial.println(contador);
  }

  int PotValue = analogRead(pot);
  float nivel= map(PotValue, 0, 4095, 0, 100);
  Serial.println(nivel);
  delay(100);

  switch(contador)
  {
    case 0:
    setpoint = "00%";
    sp = 00;
    break;
    case 1:
    setpoint = "10%";
    sp = 10;
    break;
    case 2:
    setpoint = "20%";
    sp = 20;
    break;
    case 3:
    setpoint = "30%";
    sp = 30;
    break;
    case 4:
    setpoint = "40%";
    sp = 40;
    break;
    case 5:
    setpoint = "50%";
    sp = 50;
    break;
    case 6:
    setpoint = "60%";
    sp = 60;
    break;
    case 7:
    setpoint = "70%";
    sp = 70;
    break;
    case 8:
    setpoint = "80%";
    sp = 80;
    break;
    case 9:
    setpoint = "90%";
    sp = 90;
    break;
  }

  if (nivel < sp)
  {
    digitalWrite(led, HIGH);
  }
  else
  {
    digitalWrite(led, LOW);
  }

  lcd.setCursor(0,0);
  lcd.print("SETPOINT: ");
  lcd.print(setpoint);
  lcd.setCursor(0,1);
  lcd.print("NIVEL: ");
  lcd.print(nivel);
}