Smart fire protection system for buildings

My project Smart fire protection system for buildings is about the safety for people in skyscrapers if there is a fire in the building so the people could be alerted by the piezo and the sprinkler placed in every floor will be turned on to extinguish and the exhaust which also placed at every floor will be turned on to take the out the smoke as well. As we know that if there is smoke in the skyscraper so the visibility is zero so that’s why I have placed a neopixel strip at the exit gate to show the way out and I have used green color for my neopixel LED strip because when there is smoke in the room, green color can effectively be seen and also I have a bulb which will indicate us.I decided to make it because in tall buildings like Burj Khalifa its hard to know where is the fire so the gas sensor will help us in the fire by telling us there is fire somewhere so people could exit quickly and the fire department could quickly come to put off the fire till it spreads the whole building.

My project works like when the fire will reach the gas sensor the piezo will buzz and red light will glow and the bulb will also glow they will indicate everyone in the building that there is fire in the building the exhaust motor and the sprinkler motor will be turned on to extinguish the fire and the exhaust motor will be turned on to take the smoke out of the building. The green neopixel LED strip placed at gate will be turned on to show the way to exit this is how my project works.

   # 
 include 
 <Adafruit_NeoPixel.h> 
 
  # 
 include 
 <LiquidCrystal.h> 
 
LiquidCrystal lcd 
 ( 
 8 
 , 
 9 
 , 
 10 
 , 
 11 
 , 
 12 
 , 
 13 
 ) 
 ; 
 //Constants 
 const 
 int 
dinPin = 
 3 
 ; 
 const 
 int 
numOfLeds = 
 16 
 ; 
Adafruit_NeoPixel pixels = 
 Adafruit_NeoPixel 
 ( 
numOfLeds , 
dinPin , 
NEO_GRB + 
NEO_KHZ800 ) 
 ; 
 int 
Gas_Sensor_Value = 
 0 
 ; 
 int 
Gas_sensor = 
A0 ; 
 int 
Piezo = 
 7 
 ; 
 int 
RGB_red = 
 6 
 ; 
 int 
RGB_green = 
 5 
 ; 
 int 
exhaust_motor = 
 4 
 ; 
 int 
sprinkler_motor = 
 2 
 ; 
 void 
 setup 
 ( 
 ) 
 { 
pixels . 
 begin 
 ( 
 ) 
 ; 
pixels . 
 setBrightness 
 ( 
 80 
 ) 
 ; 
lcd . 
 begin 
 ( 
 16 
 , 
 2 
 ) 
 ; 
 // set up the LCD's number of columns and rows: 
 pinMode 
 ( 
Gas_sensor , 
INPUT ) 
 ; 
 pinMode 
 ( 
Piezo , 
OUTPUT ) 
 ; 
 pinMode 
 ( 
RGB_red , 
OUTPUT ) 
 ; 
 pinMode 
 ( 
RGB_green , 
OUTPUT ) 
 ; 
 pinMode 
 ( 
exhaust_motor , 
OUTPUT ) 
 ; 
 pinMode 
 ( 
sprinkler_motor , 
OUTPUT ) 
 ; 
 } 
 void 
 loop 
 ( 
 ) 
 { 
lcd . 
 clear 
 ( 
 ) 
 ; 
Gas_Sensor_Value = 
 analogRead 
 ( 
A0 ) 
 ; 
 if 
 ( 
Gas_Sensor_Value >= 
 700 
 ) 
 { 
 for 
 ( 
 int 
i = 
 0 
 ; 
i < 
numOfLeds ; 
i ++ 
 ) 
 { 
pixels . 
 setPixelColor 
 ( 
i , 
pixels . 
 Color 
 ( 
 0 
 , 
 255 
 , 
 0 
 ) 
 ) 
 ; 
pixels . 
 show 
 ( 
 ) 
 ; 
 } 
 digitalWrite 
 ( 
sprinkler_motor , 
HIGH ) 
 ; 
 digitalWrite 
 ( 
Piezo , 
HIGH ) 
 ; 
 digitalWrite 
 ( 
exhaust_motor , 
HIGH ) 
 ; 
 digitalWrite 
 ( 
RGB_red , 
HIGH ) 
 ; 
 digitalWrite 
 ( 
RGB_green , 
LOW ) 
 ; 
lcd . 
 print 
 ( 
 "Burj Khalifa is" 
 ) 
 ; 
 // Print a message to the LCD. 
lcd . 
 setCursor 
 ( 
 0 
 , 
 1 
 ) 
 ; 
lcd . 
 print 
 ( 
 "on fire!" 
 ) 
 ; 
 delay 
 ( 
 1000 
 ) 
 ; 
 } 
 else 
 { 
 digitalWrite 
 ( 
exhaust_motor , 
LOW ) 
 ; 
 digitalWrite 
 ( 
sprinkler_motor , 
LOW ) 
 ; 
 digitalWrite 
 ( 
Piezo , 
LOW ) 
 ; 
 digitalWrite 
 ( 
RGB_red , 
LOW ) 
 ; 
 digitalWrite 
 ( 
RGB_green , 
HIGH ) 
 ; 
lcd . 
 print 
 ( 
 "Burj Khalifa" 
 ) 
 ; 
 // Print a message to the LCD. 
lcd . 
 setCursor 
 ( 
 0 
 , 
 1 
 ) 
 ; 
lcd . 
 print 
 ( 
 "is Safe" 
 ) 
 ; 
 delay 
 ( 
 1000 
 ) 
 ; 
 } 
 }