#include <Wire.h>
#include "SH1106Wire.h"   // legacy: #include "SH1106.h"
#include <Bounce2.h>


#include <Dialog_bold_14.h> // 

SH1106Wire lcd(0x3c, SDA, SCL);  // ADDRESS, SDA, SCL

#define BUTTON_PIN_1 12
#define BUTTON_PIN_2 13

const byte flashPin = 35;
const byte LEDPin   =  2;    //interne LED
const byte LED_PIN1 = 18;    //externe LED
const byte LED_PIN2 = 19;    //externe LED

volatile bool ledState = LOW;
unsigned int val = 25;
bool value1 = LOW;
bool value2 = LOW;
//------------------------------
const int pwmPin = 18;  // = GPIO18
const int freq = 2000;
const int pwmChannel = 0; // choose 0 - 15
const int res = 8; // 2^8 = 256

//---------------------------


// Instantiate a Bounce object
Bounce debouncer1 = Bounce(); 
Bounce debouncer2 = Bounce(); 

unsigned int c1;
bool bSt1 = 0;
bool bSt2 = 0;

// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pin LED_BUILTIN as an output.
  Serial.begin(115200);
  pinMode(LEDPin, OUTPUT);
  pinMode(LED_PIN1,OUTPUT);
  pinMode(LED_PIN2,OUTPUT);
  pinMode(flashPin, INPUT_PULLUP);
  attachInterrupt(digitalPinToInterrupt(flashPin), func_Flash, FALLING);

  // Setup the first button with an internal pull-up :
  pinMode(BUTTON_PIN_1,INPUT_PULLUP);
  // After setting up the button, setup the Bounce instance :
  debouncer1.attach(BUTTON_PIN_1);
  debouncer1.interval(20); // interval in ms
  
   // Setup the second button with an internal pull-up :
  pinMode(BUTTON_PIN_2,INPUT_PULLUP);
  // After setting up the button, setup the Bounce instance :
  debouncer2.attach(BUTTON_PIN_2);
  debouncer2.interval(20); // interval in ms

ledcAttach(pwmPin, freq, res); // channel is chosen automatically

  lcd.init();
  lcd.flipScreenVertically();
  lcd.setContrast(255);
  lcd.clear();
  startScreen();
}

// the loop function runs over and over again forever
void loop() {

button();
lcd.clear();
  //lcd.drawString(5, 30,String(value1));
  //lcd.drawString(25,30,String(value2));
  //lcd.display();//write buffer

 // Serial.println("Kein Interrupt");
 // delay(100);

ledcWrite(pwmPin, (c1*12));//240
//Serial.println((c1*12));
//drawProgressBarDemo();

  //digitalWrite(LED_BUILTIN, HIGH);  // turn the LED on (HIGH is the voltage level)
  if ( ledState == HIGH){
      delay(100);                      // wait for a second
      digitalWrite(LEDPin, LOW);   // turn the LED off by making the voltage LOW
      //delay(1000);                      // wait for a second
      ledState = LOW;
      }
 // delay(1000);                      // wait for a second
 // digitalWrite(LED_BUILTIN, LOW);   // turn the LED off by making the voltage LOW
 // delay(1000);                      // wait for a second
}


ICACHE_RAM_ATTR void func_Flash() {
  //IRAM_ATTR void func_Flash() {
  digitalWrite(LEDPin, HIGH);  // turn the LED on (HIGH is the voltage level)
  ledState = HIGH;
  //Serial.println("brightness: " + String(brightness));
}

//--------------------------------------------------------