Diff: main.cpp

Revision:

11:801504d5b73a

Parent:

10:dc33cd3f4eb9

--- a/main.cpp	Thu Jan 12 23:35:40 2017 +0000
+++ b/main.cpp	Mon Apr 30 17:10:05 2018 +0000
@@ -1,21 +1,199 @@
+//Monitoring Center
+
 #include "mbed.h"
+#include "rtos.h"
+
+#define RX_  PTC14
+#define TX_  PTC15
+
+//Delay declared in seconds
+/*GPIO declaration*/
+DigitalOut Red(LED1);
+DigitalOut Green(LED2);
+DigitalOut Blue(LED3);
+
+//DigitalIn sw2(SW2);
+
+//DigitalOut buzzer(D2);
+PwmOut buzzer(D3);
+
+int on = 1, off = 0; 
+
+Serial BlueTooth(TX_, RX_);  // bluetooth serial port
+
+InterruptIn sw3(SW3);
+Thread thread1;
+
+void read_BlueTooth();
+void switch_ISR(void);
+void sendMsg(char msg,int time);
+void LED_Color(char color,int blink);
+
+
+char correct = 'C';
+char alert = 'A';
+char connectREQ = 'M'; // connect Request
+char connected = 'M';
+char ReconnectREQ = 'R';
+char Fail = 'F';
+
+int ReconnectFlg = false;
+int buzzerFlg = false;
+int readyFlg = true;
+int actionFlg = 0; 
+
+int main(void)
+{
  
-DigitalOut led1(LED1);
-DigitalOut led2(LED2);
-Thread thread;
- 
-void led2_thread() {
-    while (true) {
-        led2 = !led2;
-        wait(1);
+    BlueTooth.baud(9600);
+    
+    LED_Color('P',0);
+    buzzer.write(0.0);
+    
+    sw3.rise(switch_ISR);
+    thread1.start(read_BlueTooth);
+    
+    sendMsg(ReconnectREQ,50); // sending master reconnection request
+    
+    while(true)
+    { 
+        
+        if( ReconnectFlg )
+        {
+            LED_Color('P',0);
+            printf("Connected\n\rSending Ack to Master\n\r");
+            
+            sendMsg(connectREQ,100); // sending master acknowledgment
+            
+            printf("System Ready\n\r"); // turn LGB LED blue upon Ack recived
+            ReconnectFlg = false;
+            LED_Color('B',0);
+        } 
+  
+        else if( actionFlg == 1 )   // turn LGB LED yellow when Alert recived
+        {    
+            printf("Alert Recieved\n\r");
+            LED_Color('Y',1);
+            actionFlg = 0;
+        }
+    
+        else if(actionFlg == 2) // turn LGB LED green upon correct password
+        {
+            printf("\nCorrect password\n\r");
+            LED_Color('G',0);
+            wait(2);
+            actionFlg = 0;
+            readyFlg = true;
+            //LED_Color('B',0);
+            //printf("System Ready\n\r");    
+        }
+        else if(actionFlg == 3) // turn LGB LED Red, sound buzzer
+        {
+            printf("Incorrect Password\n\r");
+            //LED_Color('R',1);
+            buzzerFlg = true;
+            actionFlg = 0;
+            printf("Buzzer On\n\r");
+            LED_Color('R',0);
+        }
+        if(buzzerFlg)
+        {
+            buzzer.period(1.0/8.0);
+            buzzer.write(.5);
+            //buzzer.write(0.0);
+        }
+        else
+        {
+            buzzer.write(0);    
+        }
+        if(readyFlg)
+        {   
+            readyFlg = false;
+            LED_Color('B',0);
+            printf("System Ready\n\r");
+        } 
+        
+    }//end while(true)
+          
+}// End main-------------------------------
+
+void read_BlueTooth(){
+    
+    while(true)
+    {
+        if(BlueTooth.readable()) // read data from the bluetooth serial port
+        {
+            //printf("data:%c\n\r",BlueTooth.getc());    
+            if( BlueTooth.getc() == connectREQ ){
+                printf("Trying to Connect to Master\n\r");  
+                ReconnectFlg = true;
+                buzzerFlg = false;
+                actionFlg = 0; 
+            }         
+            else if( BlueTooth.getc() == alert ){
+                actionFlg = 1; //intruder detected
+                buzzerFlg = false;  
+            }
+            else if( BlueTooth.getc() == correct){
+                actionFlg = 2;  //correct password
+            }
+            else if( BlueTooth.getc() == Fail){
+                actionFlg = 3;  //incorrect password detected
+            }
+        }//end if
+        
+    }// end while
+    
+}// read_BlueTooth
+
+void switch_ISR(void) { 
+    if (buzzerFlg){
+        readyFlg = true;
+        buzzerFlg = false;
     }
-}
+}//end switch_ISR
+
+void sendMsg(char msg,int time){
  
-int main() {
-    thread.start(led2_thread);
+    while(time--){
+        BlueTooth.putc(msg);
+    }
+}//end sendMSg
+
+void LED_Color(char color,int blink){
     
-    while (true) {
-        led1 = !led1;
-        wait(0.5);
+    /*LedsOFF (active low)*/
+    Red = 1;
+    Green = 1;
+    Blue = 1;
+    if (color == 'C')
+        return;
+    else if(color == 'G')
+        Green = 0;
+    else if(color == 'R')
+        Red = 0;
+    else if(color == 'B')
+        Blue = 0;
+    else if(color == 'Y'){
+        Red = 0;
+        Green = 0;
     }
+    else if(color == 'P'){
+        Blue = 0;
+        Red = 0;   
+    }
+    else if(color == 'W'){
+        Blue = 0;
+        Red = 0;
+        Green = 0;   
+    }
+    else{} // do nothing
+    
+    if(blink){
+        wait(0.1f);  // wait a small period of time
+        Red = 1;
+        Green = 1;
+        Blue = 1;
+        wait(0.1f);
+     }        
 }