Rotary Encoder and SSD 1306

encoder.ino

/* Rotary Encoder and SSD 1306
*/
#include <ESP_SSD1306.h>    // Modification of Adafruit_SSD1306 for ESP8266 compatibility
#include <Adafruit_GFX.h>   // Needs a little change in original Adafruit library (See README.txt file)
#include <SPI.h>            // For SPI comm (needed for not getting compile error)
#include <Wire.h>           // For I2C comm, but needed for not getting compile error
// Pin definitions
#define OLED_RESET  16  // Pin 15 -RESET digital signal
#include <Encoder.h>


//Display
ESP_SSD1306 display(OLED_RESET); // FOR I2C

// Change these two 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 myEnc(D5, D6);
//   avoid using pins with LEDs attached

void setup() {
  Serial.begin(9600);
  Serial.println("Basic Encoder Test:");
    // SSD1306 Init
  display.begin(SSD1306_SWITCHCAPVCC);  // Switch OLED
  display.display();
  // Clear the buffer.
  display.clearDisplay();
}

long oldPosition  = 0;
long value=0;

void loop() {


    GetEncoderValue();

    
      // Display Value
    display.clearDisplay();
    display.setCursor(0,0);
    display.setTextSize(4);
    display.setTextColor(WHITE);
    display.println(value);
    display.display();
  
}

void GetEncoderValue()
{
  long _newPosition = myEnc.read();
  if (_newPosition != oldPosition) {
    oldPosition = _newPosition;
    Serial.println(_newPosition);
    value=_newPosition/4;
    value=abs(value);
  }
}