#include <IRremote.h>
#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);
  Serial.begin(9600);
  irrecv.enableIRIn();
}

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

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

  if (IRinput == 152) {
    stepperSteps -= 1;
    if (stepperSteps < 0) {
      stepperSteps = 0;
    }
  }

  if (IRinput == 2) {
    stepperSteps += 1;
    if (stepperSteps > 200) {
      stepperSteps = 200;
    }
  }
}