// include the library code: 
  # 
 include 
 <LiquidCrystal.h> 
 
  # 
 include 
 <Servo.h> 
 
 // initialize the library by associating any needed LCD interface pin 
 // with the arduino pin number it is connected to 
 const 
 int 
rs = 
 12 
 , 
en = 
 11 
 , 
d4 = 
A0 , 
d5 = 
A1 , 
d6 = 
A4 , 
d7 = 
A2 ; 
LiquidCrystal lcd 
 ( 
rs , 
en , 
d4 , 
d5 , 
d6 , 
d7 ) 
 ; 
 int 
switch1 = 
 2 
 ; 
 int 
switch2 = 
 3 
 ; 
 int 
switch3 = 
 4 
 ; 
 int 
switch4 = 
 5 
 ; 
 int 
switch5 = 
 1 
 ; 
 int 
switch6 = 
 0 
 ; 
Servo door ; 
 void 
 setup 
 ( 
 ) 
 { 
 // set up the LCD's number of columns and rows: 
lcd . 
 begin 
 ( 
 16 
 , 
 2 
 ) 
 ; 
 //declare inputs 
 pinMode 
 ( 
switch1 , 
INPUT ) 
 ; 
 pinMode 
 ( 
switch2 , 
INPUT ) 
 ; 
 pinMode 
 ( 
switch3 , 
INPUT ) 
 ; 
 pinMode 
 ( 
switch4 , 
INPUT ) 
 ; 
 pinMode 
 ( 
switch5 , 
INPUT ) 
 ; 
 pinMode 
 ( 
switch6 , 
INPUT ) 
 ; 
 // set servo motor 
door . 
 attach 
 ( 
 13 
 ) 
 ; 
door . 
 write 
 ( 
 90 
 ) 
 ; 
 } 
 void 
 loop 
 ( 
 ) 
 { 
switch1 = 
 digitalRead 
 ( 
 2 
 ) 
 ; 
switch2 = 
 digitalRead 
 ( 
 3 
 ) 
 ; 
switch3 = 
 digitalRead 
 ( 
 4 
 ) 
 ; 
switch4 = 
 digitalRead 
 ( 
 5 
 ) 
 ; 
switch6 = 
 digitalRead 
 ( 
 1 
 ) 
 ; 
 if 
 ( 
switch1 && 
switch4 && 
switch6 == 
HIGH ) 
 { 
lcd . 
 clear 
 ( 
 ) 
 ; 
lcd . 
 setCursor 
 ( 
 0 
 , 
 1 
 ) 
 ; 
lcd . 
 write 
 ( 
 "Door not lock" 
 ) 
 ; 
door . 
 write 
 ( 
 180 
 ) 
 ; 
 delay 
 ( 
 5000 
 ) 
 ; 
door . 
 write 
 ( 
 90 
 ) 
 ; 
 } 
 else 
 { 
lcd . 
 clear 
 ( 
 ) 
 ; 
door . 
 write 
 ( 
 90 
 ) 
 ; 
lcd . 
 write 
 ( 
 "Door locked" 
 ) 
 ; 
 } 
 for 
 ( 
 int 
i = 
 0 
 ; 
i <= 
 3 
 ; 
i ++ 
 ) 
 { 
 delay 
 ( 
 5000 
 ) 
 ; 
 if 
 ( 
switch1 != 
HIGH && 
switch4 != 
HIGH && 
switch6 != 
HIGH ) 
 { 
lcd . 
 clear 
 ( 
 ) 
 ; 
lcd . 
 write 
 ( 
 "Wait for 5 minutes" 
 ) 
 ; 
 delay 
 ( 
 300000 
 ) 
 ; 
 } 
 } 
 }