// Source code from https://techatronic.com/oled-display-with-arduino-ssd1306-oled

// TECHATRONIC.COM
// Library SPI.h
// https://github.com/PaulStoffregen/SPI
// Library Adafruit_GFX.h
// https://github.com/adafruit/Adafruit-GFX-Library
// Library Adafruit_SSD1306.h
// https://github.com/adafruit/Adafruit_SSD1306
#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#define screen_width 128 // OLED display width, in pixels  
#define screen_height 64 // OLED display height, in pixels  
#define OLED_RESET 4
Adafruit_SSD1306 display(screen_width, screen_height);

#define btnEnter 4
#define btnDown 3
#define btnUp 2

#define ledIndicador 8
#define ledClick 9
unsigned long int TempoInicial = 0;
int TempoFinal;
boolean StatusLed = LOW;
int segundo;
int cont = 0 ;
int cont1 = 5;



void setup(){
  Serial.begin(9600);
    // SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // Address 0x3D for 128x64
    Serial.println(F("SSD1306 allocation failed"));
    for(;;); // Don't proceed, loop forever
  }

  pinMode(btnEnter, INPUT_PULLUP);
  pinMode(ledIndicador, OUTPUT);
 
}
void loop(){
  //display.display();


 

  
  if(!digitalRead(btnEnter)){
    if ( millis() - TempoInicial >= 300 ){
      cont ++;
    TempoInicial = millis();
    //Serial.print(TempoInicial);Serial.println(" aqui");
    StatusLed = !StatusLed;
    
    //tela(cont);
    
    }
    //else(digitalRead(btnEnter)){
    //cont = 0;
    //}
  }else{
    cont = 0;
  }
  if(cont == 1){
    digitalWrite(ledIndicador,HIGH );
     
  }else{
    digitalWrite(ledIndicador,LOW );
    
  }

  if( (cont ==5)){
    
    if(digitalRead(btnEnter)){
    Serial.print("Contou 5");
    tela("cont");
    cont = 0;
  }

  }
  
}

void tela(char pi){
  display.clearDisplay();

  display.setTextSize(1);      // Normal 1:1 pixel scale
  display.setTextColor(SSD1306_WHITE); // Draw white text
  display.setCursor(0, 0);
  display.print(pi);
  display.display();
}