Bluetooth-Controlled Messenger LCD

1
2#include <LiquidCrystal.h>
3
4char str[34],L=2;
5int temp=0,i=0;
6int  Pass=0,p=0;
7 int c,x,d;
8const int rs = 5, en = 3, d4 = A5, d5 = A4, d6 = A3,  d7 = A2;
9LiquidCrystal lcd(rs, en, d4, d5, d6, d7);
10
11void setup()
12{
13  Serial.begin(9600);
14  pinMode(A1,OUTPUT);
15  pinMode(A0,OUTPUT);
16   pinMode(4,OUTPUT);
17   
18  digitalWrite(A1,LOW); 
19  digitalWrite(A0,LOW); 
20   digitalWrite(4,LOW);  
21   
22  lcd.begin(16, 2);
23  
24 
25}
26
27
28void loop() 
29{ 
30  if(temp==1)
31  {
32    check();
33     temp=0;
34    i=0;
35    delay(1000);
36  }
37  
38}
39
40void serialEvent() 
41 {
42      while (Serial.available())  
43      {
44      char inChar=Serial.read();
45      str[i++]=inChar;
46      delay(10);
47      }
48       for (p=i+1;p<34;p++)
49      {
50        str[i++]=32;
51      }
52    temp=1;
53  Serial.write(str);
54  lcd.setCursor(0, 0);
55 lcd.print(str);
56  if(i>16)
57  {
58    d=16;
59    for (x=0;x<=17;x++)
60    {
61    lcd.setCursor(x,2);
62    lcd.print(str[d]);
63    d++;
64    }
65  }
66 }
67
68void check()
69{
70if(!(strncmp(str,"1",1)))
71  {
72   digitalWrite(A1,50); 
73   lcd.clear(); 
74  }
75  else if(!(strncmp(str,"2",1)))
76  {
77   digitalWrite(A1,LOW);
78   lcd.clear(); 
79  }
80}
81

1
2#include <LiquidCrystal.h>
3
4char str[34],L=2;
5int temp=0,i=0;
6int   Pass=0,p=0;
7 int c,x,d;
8const int rs = 5, en = 3, d4 = A5, d5 = A4, d6 = A3,   d7 = A2;
9LiquidCrystal lcd(rs, en, d4, d5, d6, d7);
10
11void setup()
12{
13   Serial.begin(9600);
14  pinMode(A1,OUTPUT);
15  pinMode(A0,OUTPUT);
16   pinMode(4,OUTPUT);
17    
18  digitalWrite(A1,LOW); 
19  digitalWrite(A0,LOW); 
20   digitalWrite(4,LOW);   
21   
22  lcd.begin(16, 2);
23  
24 
25}
26
27
28void loop() 
29{ 
30   if(temp==1)
31  {
32    check();
33     temp=0;
34    i=0;
35    delay(1000);
36   }
37  
38}
39
40void serialEvent() 
41 {
42      while (Serial.available())   
43      {
44      char inChar=Serial.read();
45      str[i++]=inChar;
46      delay(10);
47       }
48       for (p=i+1;p<34;p++)
49      {
50        str[i++]=32;
51      }
52     temp=1;
53  Serial.write(str);
54  lcd.setCursor(0, 0);
55 lcd.print(str);
56   if(i>16)
57  {
58    d=16;
59    for (x=0;x<=17;x++)
60    {
61    lcd.setCursor(x,2);
62     lcd.print(str[d]);
63    d++;
64    }
65  }
66 }
67
68void check()
69{
70if(!(strncmp(str,"1",1)))
71   {
72   digitalWrite(A1,50); 
73   lcd.clear(); 
74  }
75  else if(!(strncmp(str,"2",1)))
76   {
77   digitalWrite(A1,LOW);
78   lcd.clear(); 
79  }
80}
81