GSM Based Door Lock

1
2#include<SoftwareSerial.h> 
3SoftwareSerial mySerial(10,11);  //  (Rx,Tx  > Tx,Rx) 
4
5char incomingByte; 
6String inputString;
7int IN1 =  2; // Output for Motor Driver IN1
8int IN2 = 3; // Output for Motor Driver IN2
9
10void  setup() 
11{
12      pinMode(IN1, OUTPUT);
13        pinMode(IN2, OUTPUT);
14      digitalWrite(IN1, LOW); // Initial state of the LOW
15       digitalWrite(IN2,  LOW); // Initial state of the LOW
16      Serial.begin(9600);
17      mySerial.begin(9600);  
18
19     while(!mySerial.available()){
20        mySerial.println("AT");
21        delay(1000); 
22        Serial.println("Connecting...");
23        }
24      Serial.println("Connected!");  
25      mySerial.println("AT+CMGF=1");  //Set SMS to Text Mode 
26      delay(1000);  
27      mySerial.println("AT+CNMI=1,2,0,0,0");  //Procedure to handle newly arrived messages(command name in text: new message  indications to TE) 
28      delay(1000);
29      mySerial.println("AT+CMGL=\\"REC  UNREAD\\""); // Read Unread Messages
30     }
31
32void loop()
33{  
34  if(mySerial.available()){
35      delay(100);
36
37      // Serial Buffer
38      while(mySerial.available()){
39        incomingByte = mySerial.read();
40        inputString += incomingByte;  
41        }
42
43        delay(10);      
44
45        Serial.println(inputString);
46        inputString.toUpperCase(); // Uppercase the Received Message
47
48        //turn  RELAY ON or OFF
49        if (inputString.indexOf("DOOR LOCK") > -1){      //  Send sms for door lock
50          digitalWrite(IN1, HIGH);
51          delay(500);
52          digitalWrite(IN1, LOW);
53          }
54            
55           if  (inputString.indexOf("DOOR UNLOCK") > -1){     //send sms for door unlock
56          digitalWrite(IN2, HIGH);
57          delay(500);
58          digitalWrite(IN2,  LOW);
59          }
60        
61        delay(50);
62
63        //Delete Messages  & Save Memory
64        if (inputString.indexOf("OK") == -1){
65        mySerial.println("AT+CMGDA=\\"DEL  ALL\\"");
66
67        delay(1000);}
68
69        inputString = "";
70  }
71}
72

1
2#include<SoftwareSerial.h> 
3SoftwareSerial mySerial(10,11);  //
4  (Rx,Tx  > Tx,Rx) 
5
6char incomingByte; 
7String inputString;
8int IN1 =
9  2; // Output for Motor Driver IN1
10int IN2 = 3; // Output for Motor Driver IN2
11
12void
13  setup() 
14{
15      pinMode(IN1, OUTPUT);
16        pinMode(IN2, OUTPUT);
17
18      digitalWrite(IN1, LOW); // Initial state of the LOW
19       digitalWrite(IN2,
20  LOW); // Initial state of the LOW
21      Serial.begin(9600);
22      mySerial.begin(9600);
23  
24
25     while(!mySerial.available()){
26        mySerial.println("AT");
27
28        delay(1000); 
29        Serial.println("Connecting...");
30        }
31
32      Serial.println("Connected!");  
33      mySerial.println("AT+CMGF=1");
34  //Set SMS to Text Mode 
35      delay(1000);  
36      mySerial.println("AT+CNMI=1,2,0,0,0");
37  //Procedure to handle newly arrived messages(command name in text: new message
38  indications to TE) 
39      delay(1000);
40      mySerial.println("AT+CMGL=\\"REC
41  UNREAD\\""); // Read Unread Messages
42     }
43
44void loop()
45{  
46  if(mySerial.available()){
47
48      delay(100);
49
50      // Serial Buffer
51      while(mySerial.available()){
52
53        incomingByte = mySerial.read();
54        inputString += incomingByte;
55  
56        }
57
58        delay(10);      
59
60        Serial.println(inputString);
61
62        inputString.toUpperCase(); // Uppercase the Received Message
63
64        //turn
65  RELAY ON or OFF
66        if (inputString.indexOf("DOOR LOCK") > -1){      //
67  Send sms for door lock
68          digitalWrite(IN1, HIGH);
69          delay(500);
70
71          digitalWrite(IN1, LOW);
72          }
73            
74           if
75  (inputString.indexOf("DOOR UNLOCK") > -1){     //send sms for door unlock
76
77          digitalWrite(IN2, HIGH);
78          delay(500);
79          digitalWrite(IN2,
80  LOW);
81          }
82        
83        delay(50);
84
85        //Delete Messages
86  & Save Memory
87        if (inputString.indexOf("OK") == -1){
88        mySerial.println("AT+CMGDA=\\"DEL
89  ALL\\"");
90
91        delay(1000);}
92
93        inputString = "";
94
95  }
96}
97