#include <U8g2lib.h>

U8G2_SSD1306_128X32_UNIVISION_F_HW_I2C u8g2(U8G2_R0);

void setup(void) {
  u8g2.begin();
}

void loop(void) {
  u8g2.firstPage();
  do {
    u8g2.setFont(u8g2_font_ncenB14_tr);
    u8g2.drawStr(0,15,"Hello World!");
  } while ( u8g2.nextPage() );
  delay(1000);
}


#include <Encoder.h>
#include <Encoder.h>

#include <AceButton.h>
using namespace ace_button;

const int BUTTON_PIN = 2;

AceButton button(BUTTON_PIN);

void handleEvent(AceButton*, uint8_t, uint8_t);

// Change these pin numbers to the pins connected to your encoder.
//   Best Performance: both pins have interrupt capability
//   Good Performance: only the first pin has interrupt capability
//   Low Performance:  neither pin has interrupt capability
Encoder knobLeft(3, 4);


void setup() {
  Serial.begin(9600);
    pinMode(BUTTON_PIN, INPUT);
      button.setEventHandler(handleEvent);


  Serial.println("TwoKnobs Encoder Test:");
}

long positionLeft  = -999;
long positionRight = -999;

void loop() {
    button.check();

  long newLeft, newRight;
  newLeft = knobLeft.read();
  if (newLeft != positionLeft) {
    Serial.print("Left = ");
    Serial.println(newLeft);
    Serial.print(digitalRead(2));

    Serial.println();
    positionLeft = newLeft;
  }
  // if a character is sent from the serial monitor,
  // reset both back to zero.
  if (Serial.available()) {
    Serial.read();
    Serial.println("Reset both knobs to zero");
    knobLeft.write(0);

  }
}

void handleEvent(AceButton* /*button*/, uint8_t eventType,
    uint8_t /*buttonState*/) {
  switch (eventType) {
    case AceButton::kEventPressed:
      Serial.println("pressed");
      break;
    case AceButton::kEventReleased:
      Serial.println("released");
      break;
  }
}