// Menggerakan stepper motor (+ - 1derajat) dari tombol + - IR Remote

#include <IRremote.h> // memanggil library IRremote
#include <Stepper.h>

const int stepsPerRevolution = 200;
int Receiver = 2;

IRrecv irrecv(Receiver);
decode_results results;

Stepper stepper(stepsPerRevolution, 8, 9, 10, 11);
int previous = 0;
int stepperSteps =0;


void setup() {
  stepper.setSpeed(200);   // set the speed at 200 rpm:
  Serial.begin(9600); // berkomunikasi dengan PC atau komputer
  irrecv.enableIRIn(); // memulai penerimaan sinyal I
}

void loop(){
   if (irrecv.decode()) {
     IRremote();
       irrecv.resume();
    stepper.step(stepperSteps - previous);
    previous = stepperSteps;
   }

}

void IRremote(){
  int IRinput = irrecv.decodedIRData.command;

    if (IRinput == 	152) { // Pengaturan pada tombol - IR Remote
        stepperSteps -= 1;  
        if (stepperSteps < 0) {
          stepperSteps = 0;
        }            
    }
    if (IRinput == 2) { // pengaturan pada tombol + IR Remote
      stepperSteps += 1; 
      if (stepperSteps > 200) {
          stepperSteps = 200;
        }             
    }
}