This design is for a pillbox that automatically opens and closes 3 boxes based on a user input timer system. There is also an interrupt button that closes the boxes, a buzzer to alert users, and an LCD to display extra information to the user. The full arduino code is as follows :
 

#include <Servo.h>
#include <LiquidCrystal.h>
LiquidCrystal lcd(12, 11, 5, 4, 3, 8);
Servo myservo1;
Servo myservo2;
Servo myservo3;
const int beeper = 13;
int buttonState = 0;
int opn = 40;
int closed = 130; 
int pos1 = closed;
int pos2 = closed;
int pos3 = closed;
int delay1=0;
int delay2=0;
int delay3=0;
int delay4=0;
int delay5=0;
void setup() {
  myservo1.attach(10);
  myservo2.attach(9);
  myservo3.attach(6);
  lcd.begin(16, 2);
  lcd.clear();
  myservo1.write(pos1);
  delay(1000);
  myservo2.write(pos2);
  delay(1000);
  myservo3.write(pos3);
  attachInterrupt(0, blink, CHANGE);
  pinMode(beeper, OUTPUT);
  Serial.begin(9600); 
  Serial.println(" ");
  Serial.print("How many seconds from the start until Box 1 opens: "); 
  delay(3000);
  if (Serial.available()) {delay1= Serial.parseInt(); }
  Serial.println(delay1);
  Serial.print("How many seconds between Box 1 and Box 2 opening: "); 
  delay(3000);
  if (Serial.available()) {delay2= Serial.parseInt(); }
  Serial.println(delay2);
  Serial.print("How many seconds between Box 2 and Box 3 opening: "); 
  delay(3000);
  if (Serial.available()) {delay3= Serial.parseInt(); }
  Serial.println(delay3);
  Serial.print("How many seconds between Box 3 opening and refilling pills: "); 
  delay(3000);
  if (Serial.available()) {delay4= Serial.parseInt(); }
  Serial.println(delay4);
  Serial.print("How many seconds between refilling pills and Box 1 opening: "); 
  delay(3000);
  if (Serial.available()) {delay5= Serial.parseInt();}
  Serial.println(delay5);
  delay1=delay1*1000; 
  delay2=delay2*1000; 
  delay3=delay3*1000; 
  delay4=delay4*1000; 
  delay5=delay5*1000;
  delay(delay1);
}
void loop() {
  if (pos1==closed){ 
  for (int i=500; i>0; i--)
  { 
    digitalWrite(beeper, HIGH);
    delayMicroseconds(i);
    digitalWrite(beeper, LOW); 
    delayMicroseconds(i);
  }
  }
  pos1=opn;
  myservo1.write(opn);
  lcd.clear();
  lcd.print("Take pills from");
  lcd.setCursor(0,1);
  lcd.print("box ");
  if (pos1==opn){
  lcd.print("1 ");
  }
  if (pos2==opn){
  lcd.print("2 ");
  }
  if (pos3==opn){
  lcd.print("3 ");
  }

  
  delay(delay2); 
   
   if (pos2==closed){ 
  for (int i=500; i>0; i--)
  { 
    digitalWrite(beeper, HIGH);
    delayMicroseconds(i);
    digitalWrite(beeper, LOW); 
    delayMicroseconds(i);
  }
  }
  pos2=opn;
  myservo2.write(pos2);
  lcd.clear();
  lcd.print("Take pills from");
  lcd.setCursor(0,1);
  lcd.print("box ");
  if (pos1==opn){
  lcd.print("1 ");
  }
  if (pos2==opn){
  lcd.print("2 ");
  }
  if (pos3==opn){
  lcd.print("3 ");
  }
  
  delay(delay3);

  
   if (pos3==closed){ 
  for (int i=500; i>0; i--)
  { 
    digitalWrite(beeper, HIGH);
    delayMicroseconds(i);
    digitalWrite(beeper, LOW); 
    delayMicroseconds(i);
  }
  }
  pos3=opn;
  myservo3.write(pos3);
  lcd.clear();
  lcd.print("Take pills from");
  lcd.setCursor(0,1);
  lcd.print("box ");
  if (pos1==opn){
  lcd.print("1 ");
  }
  if (pos2==opn){
  lcd.print("2 ");
  }
  if (pos3==opn){
  lcd.print("3 ");
  }
  
  delay(delay4);
  pos1=opn;
  pos2=opn;
  pos3=opn;
  for (int i=500; i>0; i--)
  { 
    digitalWrite(beeper, HIGH);
    delayMicroseconds(i);
    digitalWrite(beeper, LOW); 
    delayMicroseconds(i);
  }
  myservo1.write(pos1);
  myservo2.write(pos2);
  myservo3.write(pos3);
  lcd.clear(); 
  lcd.print("Refill the pills!");
  delay(5000); 
  pos1=closed;
  pos2=closed;
  pos3=closed;
  lcd.clear();
  
  myservo1.write(pos1);
  myservo2.write(pos2);
  myservo3.write(pos3);

  delay(delay5);
}
void blink()
{
   if (pos1==opn){
  pos1=closed;
  myservo1.write(pos1);
   }
   if (pos2==opn){
  pos2=closed;
  myservo2.write(pos2);
   }
   if (pos3==opn){
  pos3=closed;
  myservo3.write(pos3);
   }
   lcd.clear();
  for (int i=0; i<500; i++)
  { 
    digitalWrite(beeper, HIGH);
    delayMicroseconds(i);
    digitalWrite(beeper, LOW); 
    delayMicroseconds(i);
  }
}