/* Sweep
 by BARRAGAN <http://barraganstudio.com>
 This example code is in the public domain.

 modified 8 Nov 2013
 by Scott Fitzgerald
 http://www.arduino.cc/en/Tutorial/Sweep
*/

#include <Servo.h>
#define UPBUTTON_PIN 6
#define DNBUTTON_PIN 7

Servo myservo;  // create servo object to control a servo
// twelve servo objects can be created on most boards

int pos = 0;    // variable to store the servo position

int UP_But_Sts_Old;    // the previous state of button
int UP_But_Sts_Cur; // the current state of button

int DN_But_Sts_Old;    // the previous state of button
int DN_But_Sts_Cur; // the current state of button

void setup() {
  Serial.begin(9600);
  Serial.println("Starting...");
  pinMode(UPBUTTON_PIN, INPUT_PULLUP); // set arduino pin to input pull-up mode
  pinMode(DNBUTTON_PIN, INPUT_PULLUP); // set arduino pin to input pull-up mode
  UP_But_Sts_Cur = digitalRead(UPBUTTON_PIN);
  DN_But_Sts_Cur = digitalRead(DNBUTTON_PIN);

  myservo.attach(9);  // attaches the servo on pin 9 to the servo object
}

void loop() {
  UP_But_Sts_Old = UP_But_Sts_Cur;      // save the last state
  UP_But_Sts_Cur = digitalRead(UPBUTTON_PIN); // read new state

  if(UP_But_Sts_Old == HIGH && UP_But_Sts_Cur == LOW) {
    Serial.println("The UP-button is pressed");
    if (pos > 0) {
      pos = pos - 30;}}


  DN_But_Sts_Old = DN_But_Sts_Cur;      // save the last state
  DN_But_Sts_Cur = digitalRead(DNBUTTON_PIN); // read new state

  if(DN_But_Sts_Old == HIGH && DN_But_Sts_Cur == LOW) {
    Serial.println("The DN-button is pressed");
    if (pos < 180) {
      pos = pos + 30;}}

  
  myservo.write(pos);              // tell servo to go to position in variable 'pos'
  //delay(300);                       // waits 15ms for the servo to reach the position

}