// Rotary Encoder ABRAHAM 
#include <Wire.h>
#include <LiquidCrystal_I2C.h>

#define ENCODER_CLK 2  
#define ENCODER_DT  3  

LiquidCrystal_I2C lcd(0x27, 16, 2); 

int pulseCount = 0; 
float degrees = 0.0; 
const int pulsesPerRevolution = 20; 

void setup() {
    Serial.begin(62000);  
    lcd.begin(16, 2);      
    lcd.backlight();       
    lcd.setCursor(0, 0);  
    lcd.print("Encoder ABRAHAM");  

    pinMode(ENCODER_CLK, INPUT);  
    pinMode(ENCODER_DT, INPUT);   
}

int lastClk = HIGH;  

void loop() {
    int newClk = digitalRead(ENCODER_CLK);  
    if (newClk != lastClk) {  
        lastClk = newClk;  
        int dtValue = digitalRead(ENCODER_DT);  
        
        
        if (newClk == LOW && dtValue == HIGH) {
            pulseCount++;  
            Serial.println("Rotated clockwise ⏩");  
        }
        
        
        if (newClk == LOW && dtValue == LOW) {
            pulseCount--;  
            Serial.println("Rotated counterclockwise ⏪");  
        }

        
        degrees = (pulseCount * 360.0) / pulsesPerRevolution;
        
        
        Serial.print("Pulse: ");
        Serial.print(pulseCount);
        Serial.print(" | Degrees: ");
        Serial.println(degrees);

        
        lcd.setCursor(0, 1);  
        lcd.print("P: ");
        lcd.print(pulseCount);
        lcd.print(" D: ");
        lcd.print(degrees);
    }
}