arduino

/*
 * Control DC motor with Smartphone via bluetooth
 * created by Rui Santos, http://randomnerdtutorials.com
*/
#include <Bounce2.h>
 // Rotary Encoder Inputs
 #define inputCLK 5
 #define inputDT 6
#define BUTTON_PIN 2
Bounce debouncer = Bounce();


int motorPin1 = 3; // pin 2 on L293D IC
int motorPin2 = 4; // pin 7 on L293D IC
int enablePin = 10; // pin 1 on L293D IC
int state= 0;
int i=60;
int buttonPushCounter = 0;
int lastButtonPushCounter = 0;
int lastButtonState = 0;
int kierunek = 0;
int dir = 0;
int counter = 0;
int currentStateCLK;
int previousStateCLK;
String encdir ="";

void setup() {
   // sets the pins as outputs:
  // Set encoder pins as inputs
    pinMode (inputCLK,INPUT);
    pinMode (inputDT,INPUT);
    pinMode(motorPin1, OUTPUT);
    pinMode(motorPin2, OUTPUT);
    pinMode(enablePin, OUTPUT);
    pinMode(BUTTON_PIN,INPUT_PULLUP);

    Serial.begin (9600);
    // Read the initial state of inputCLK
   // Assign to previousStateCLK variable
   previousStateCLK = digitalRead(inputCLK);


  // Po konfiguracji przycisku, ustawienie działania funkcji Bounce :
  debouncer.attach(BUTTON_PIN);
  debouncer.interval(5); // interwał w ms


    // sets enablePin high so that motor can turn on:
    analogWrite(enablePin, i);
    // initialize serial communication at 9600 bits per second:

}





void loop() {

    analogWrite(enablePin, i);
    int value = debouncer.read();
       debouncer.update();
    if (value != lastButtonState) {
           // if the state has changed, increment the counter
           if (value == HIGH) {
           // if the current state is HIGH then the button
           // wend from off to on:
           buttonPushCounter++;

   }
    }

  if (buttonPushCounter != lastButtonPushCounter) {
 kierunek = dir;

    if (kierunek == 1) {
        digitalWrite(motorPin1, LOW); // set pin 2 on L293D low
        digitalWrite(motorPin2, HIGH); // set pin 7 on L293D high
        dir = 0;
    }
    // if the state is '2' the motor will turn left
    if (kierunek == 0) {
        digitalWrite(motorPin1, HIGH); // set pin 2 on L293D high
        digitalWrite(motorPin2, LOW); // set pin 7 on L293D low
         dir = 1;
    }
  }

    // Read the current state of inputCLK
   currentStateCLK = digitalRead(inputCLK);

   // If the previous and the current state of the inputCLK are different then a pulse has occured
   if (currentStateCLK != previousStateCLK){

     // If the inputDT state is different than the inputCLK state then
     // the encoder is rotating counterclockwise
     if (digitalRead(inputDT) != currentStateCLK) {
       counter --;
       encdir ="CCW";


     } else {
       // Encoder is rotating clockwise
       counter ++;
       encdir ="CW";


     }

     Serial.print(" feed: ");
     Serial.println(i);
   }
    i = counter;


    if (counter > 254) {
     counter=253;
    }
    if (counter < 0) {
    counter=1;
    }

    if (counter > 60) {
    }





 analogWrite(enablePin, i);
 lastButtonState = value;
 lastButtonPushCounter = buttonPushCounter;
 previousStateCLK = currentStateCLK;
}