In and out automatic door sensor

PIR Sensor and Arduino, which automatically opens and closes the door by detecting a person or object.

Jul 15, 2020

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arduino

Components and supplies

Arduino UNO

Rotary potentiometer (generic)

RGB LCD Shield Kit, 16x2 Character Display

5 mm LED: Red

Resistor 220 ohm

SG90 Micro-servo motor

PIR Sensor, 7 m

Tools and machines

Solder Wire, Lead Free

Soldering iron (generic)

Solder Flux, Soldering

Project description

Code

In and out automatic door sensor code

c_cpp

The servos are the automatic gate which opens without touch and the first PIR sensor is for counting the number of people who entered and the second PIR sensor is for counting the number of people who left the room, at a time only 5 people can enter the room, the lcd display is for displaying the number of people in the room and arduino uno controls the whole gate system.

1#include <LiquidCrystal.h>
2LiquidCrystal lcd(7, 6, 5, 4, 3, 2);
3#include  <Servo.h>
4Servo rservo;
5int a=0;
6int b=0;
7int c=9;
8int d=0;
9int  e=11;
10int f=0;
11void setup() 
12{
13  lcd.begin(16, 2);
14  Serial.begin(9600);
15  rservo.attach(8);
16  pinMode(13, OUTPUT);
17  pinMode(9, INPUT);
18  pinMode(12,  OUTPUT);
19  pinMode(11, INPUT);
20}
21
22void loop() 
23{ 
24 d=digitalRead(c);
25  f=digitalRead(e);  
26if(d==1)
27{
28 f==0;
29 delay(2000);
30
31}
32 else  if(f==1)
33{
34 d==0;
35 delay(2000);
36 
37}  
38  if(a==0)
39{
40 lcd.setCursor(1,0);
41  lcd.print("0 Person"); 
42 rservo.write(0);   
43 a=1;
44 b=0;    
45}
46  else if((d==1)&&(a==1))
47{
48 lcd.setCursor(1,0);
49 lcd.print("1 Person");  
50 rservo.write(45);   
51 delay(2500);   
52 rservo.write(0); 
53 digitalWrite(12,  HIGH);
54 delay(1000);
55 digitalWrite(12, LOW);   
56 a=2; 
57 b=4;  
58}
59  else if((d==1)&&(a==2))
60{  
61 lcd.setCursor(1,0);
62 lcd.print("2 Person");  
63 rservo.write(45);   
64 delay(2500);   
65 rservo.write(0);
66 digitalWrite(12,  HIGH);
67 delay(1000);
68 digitalWrite(12, LOW);   
69 a=3; 
70 b=3;
71}
72else  if((d==1)&&(a==3))
73{ 
74 lcd.setCursor(1,0);
75 lcd.print("3 Person");  
76  rservo.write(45);   
77 delay(2500);   
78 rservo.write(0); 
79 digitalWrite(12,  HIGH);
80 delay(1000);
81 digitalWrite(12, LOW);      
82 a=4;    
83 b=2;  
84}  
85 else if((d==1)&&(a==4))
86{
87 lcd.setCursor(1,0);
88 lcd.print("4 Person");  
89 rservo.write(45);   
90 delay(2500);   
91 rservo.write(0);   
92 digitalWrite(12,  HIGH);
93 delay(1000);
94 digitalWrite(12, LOW);      
95 a=5; 
96 b=1;  
97}  
98 else if((d==1)&&(a==5))
99{
100 digitalWrite(12, HIGH);
101 delay(1000);
102  digitalWrite(12, LOW);       
103 lcd.setCursor(1,0);
104 lcd.print("5 Person");
105  delay(2500);   
106 rservo.write(45);   
107 delay(2500);   
108 rservo.write(0);  
109 lcd.setCursor(1,0);
110 a=6;
111 b=0;  
112}  
113else if((d==1)&&(a==6))
114{
115  rservo.write(0);
116 lcd.setCursor(1,0);
117 lcd.print("Full Capacity");
118 delay(2500);   
119 lcd.setCursor(1,0);
120 lcd.print("                 "); 
121 delay(2500);     
122 digitalWrite(12, HIGH);
123 delay(1000);
124 digitalWrite(12, LOW);
125  lcd.print("Full Capacity");
126 delay(2500);   
127 lcd.setCursor(1,0);
128  lcd.print("                 "); 
129 delay(2500);    
130}    
131 else if((f==1)&&(b==0))
132{  
133 lcd.setCursor(1,0);
134 lcd.print("                 "); 
135 lcd.setCursor(1,0);
136  lcd.print("4 Person");  
137 rservo.write(45);   
138 delay(2500);   
139 rservo.write(0);  
140 digitalWrite(13, HIGH);
141 delay(1000);
142 digitalWrite(13, LOW);     
143  b=1; 
144 a=4;  
145}
146 else if((f==1)&&(b==1))
147{  
148 lcd.setCursor(1,0);
149  lcd.print("3 Person");  
150 rservo.write(45);   
151 delay(2500);   
152 rservo.write(0);  
153 digitalWrite(13, HIGH);
154 delay(1000);
155 digitalWrite(13, LOW);      
156  b=2; 
157 a=3;  
158}
159else if((f==1)&&(b==2))
160{ 
161 lcd.setCursor(1,0);
162  lcd.print("2 Person");  
163 rservo.write(45);   
164 delay(2500);   
165 rservo.write(0);
166  digitalWrite(13, HIGH);
167 delay(1000);
168 digitalWrite(13, LOW);     
169 b=3;  
170 a=2; 
171}  
172 else if((f==1)&&(b==3))
173{
174 lcd.setCursor(1,0);
175 lcd.print("1  Person");  
176 rservo.write(45);   
177 delay(2500);   
178 rservo.write(0); 
179  digitalWrite(13, HIGH);
180 delay(1000);
181 digitalWrite(13, LOW);  
182 b=4;
183  a=1;  
184} 
185 else if((f==1)&&(b==4))
186{
187 lcd.setCursor(1,0);
188 lcd.print("0  Person");  
189 rservo.write(45);   
190 delay(2500);   
191 rservo.write(0); 
192  digitalWrite(13, HIGH);
193 delay(1000);
194 digitalWrite(13, LOW);  
195 b=5;  
196  a=0;  
197}
198else if((f==1)&&(b==5))
199{
200 rservo.write(0);
201 digitalWrite(13,  HIGH);    
202} 
203  digitalWrite(12, LOW);
204  digitalWrite(13, LOW);   
205  //Serial.print(a);
206  //Serial.print(b);
207  //Serial.print(c);
208  //Serial.print(d);
209  //Serial.print(e);
210  //Serial.print(f);
211  
212  lcd.setCursor(1,1);
213  lcd.print("                ");
214  delay(100);
215  lcd.setCursor(1,1);
216  lcd.print("Limit 5 Person");
217  delay(1000);
218  lcd.setCursor(1,1);
219  lcd.print("                ");
220  delay(100);
221  lcd.setCursor(1,1);
222  lcd.print("Stay Home");
223  delay(1000);  
224  lcd.setCursor(1,1);
225  lcd.print("                ");
226  delay(100);
227  lcd.setCursor(1,1);
228  lcd.print("Stay  Safe");
229  delay(1000);  
230}

#include <LiquidCrystal.h>
LiquidCrystal lcd(7, 6, 5, 4, 3, 2);
#include  <Servo.h>
Servo rservo;
int a=0;
int b=0;
int c=9;
int d=0;
int  e=11;
int f=0;
void setup() 
{
  lcd.begin(16, 2);
  Serial.begin(9600);
  rservo.attach(8);
  pinMode(13, OUTPUT);
  pinMode(9, INPUT);
  pinMode(12,  OUTPUT);
  pinMode(11, INPUT);
}

void loop() 
{ 
 d=digitalRead(c);
  f=digitalRead(e);  
if(d==1)
{
 f==0;
 delay(2000);

}
 else  if(f==1)
{
 d==0;
 delay(2000);
 
}  
  if(a==0)
{
 lcd.setCursor(1,0);
  lcd.print("0 Person"); 
 rservo.write(0);   
 a=1;
 b=0;    
}
  else if((d==1)&&(a==1))
{
 lcd.setCursor(1,0);
 lcd.print("1 Person");  
 rservo.write(45);   
 delay(2500);   
 rservo.write(0); 
 digitalWrite(12,  HIGH);
 delay(1000);
 digitalWrite(12, LOW);   
 a=2; 
 b=4;  
}
  else if((d==1)&&(a==2))
{  
 lcd.setCursor(1,0);
 lcd.print("2 Person");  
 rservo.write(45);   
 delay(2500);   
 rservo.write(0);
 digitalWrite(12,  HIGH);
 delay(1000);
 digitalWrite(12, LOW);   
 a=3; 
 b=3;
}
else  if((d==1)&&(a==3))
{ 
 lcd.setCursor(1,0);
 lcd.print("3 Person");  
  rservo.write(45);   
 delay(2500);   
 rservo.write(0); 
 digitalWrite(12,  HIGH);
 delay(1000);
 digitalWrite(12, LOW);      
 a=4;    
 b=2;  
}  
 else if((d==1)&&(a==4))
{
 lcd.setCursor(1,0);
 lcd.print("4 Person");  
 rservo.write(45);   
 delay(2500);   
 rservo.write(0);   
 digitalWrite(12,  HIGH);
 delay(1000);
 digitalWrite(12, LOW);      
 a=5; 
 b=1;  
}  
 else if((d==1)&&(a==5))
{
 digitalWrite(12, HIGH);
 delay(1000);
  digitalWrite(12, LOW);       
 lcd.setCursor(1,0);
 lcd.print("5 Person");
  delay(2500);   
 rservo.write(45);   
 delay(2500);   
 rservo.write(0);  
 lcd.setCursor(1,0);
 a=6;
 b=0;  
}  
else if((d==1)&&(a==6))
{
  rservo.write(0);
 lcd.setCursor(1,0);
 lcd.print("Full Capacity");
 delay(2500);   
 lcd.setCursor(1,0);
 lcd.print("                 "); 
 delay(2500);     
 digitalWrite(12, HIGH);
 delay(1000);
 digitalWrite(12, LOW);
  lcd.print("Full Capacity");
 delay(2500);   
 lcd.setCursor(1,0);
  lcd.print("                 "); 
 delay(2500);    
}    
 else if((f==1)&&(b==0))
{  
 lcd.setCursor(1,0);
 lcd.print("                 "); 
 lcd.setCursor(1,0);
  lcd.print("4 Person");  
 rservo.write(45);   
 delay(2500);   
 rservo.write(0);  
 digitalWrite(13, HIGH);
 delay(1000);
 digitalWrite(13, LOW);     
  b=1; 
 a=4;  
}
 else if((f==1)&&(b==1))
{  
 lcd.setCursor(1,0);
  lcd.print("3 Person");  
 rservo.write(45);   
 delay(2500);   
 rservo.write(0);  
 digitalWrite(13, HIGH);
 delay(1000);
 digitalWrite(13, LOW);      
  b=2; 
 a=3;  
}
else if((f==1)&&(b==2))
{ 
 lcd.setCursor(1,0);
  lcd.print("2 Person");  
 rservo.write(45);   
 delay(2500);   
 rservo.write(0);
  digitalWrite(13, HIGH);
 delay(1000);
 digitalWrite(13, LOW);     
 b=3;  
 a=2; 
}  
 else if((f==1)&&(b==3))
{
 lcd.setCursor(1,0);
 lcd.print("1  Person");  
 rservo.write(45);   
 delay(2500);   
 rservo.write(0); 
  digitalWrite(13, HIGH);
 delay(1000);
 digitalWrite(13, LOW);  
 b=4;
  a=1;  
} 
 else if((f==1)&&(b==4))
{
 lcd.setCursor(1,0);
 lcd.print("0  Person");  
 rservo.write(45);   
 delay(2500);   
 rservo.write(0); 
  digitalWrite(13, HIGH);
 delay(1000);
 digitalWrite(13, LOW);  
 b=5;  
  a=0;  
}
else if((f==1)&&(b==5))
{
 rservo.write(0);
 digitalWrite(13,  HIGH);    
} 
  digitalWrite(12, LOW);
  digitalWrite(13, LOW);   
  //Serial.print(a);
  //Serial.print(b);
  //Serial.print(c);
  //Serial.print(d);
  //Serial.print(e);
  //Serial.print(f);
  
  lcd.setCursor(1,1);
  lcd.print("                ");
  delay(100);
  lcd.setCursor(1,1);
  lcd.print("Limit 5 Person");
  delay(1000);
  lcd.setCursor(1,1);
  lcd.print("                ");
  delay(100);
  lcd.setCursor(1,1);
  lcd.print("Stay Home");
  delay(1000);  
  lcd.setCursor(1,1);
  lcd.print("                ");
  delay(100);
  lcd.setCursor(1,1);
  lcd.print("Stay  Safe");
  delay(1000);  
}

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