Sam Thomas / Mbed 2 deprecated CarDiagnosticsOBDII Featured

This Project allows for you to see live engine data from your vehicle on the LCD display. Utilizing K64F platform,Nokia 5110 LCD and HC05 Bluetooth hardware to interface with an In-Vehicle ELM327 Bluetooth dongle connected to the OBDII port. The K64F system will query the ELM327 device for live engine data and display it onscreen.

Dependencies:   mbed N5110

Diff: main.cpp

Revision:
1:2537162d070e
Parent:
0:969924e823b4
--- a/main.cpp	Tue May 12 03:32:11 2015 +0000
+++ b/main.cpp	Tue May 12 07:00:33 2015 +0000
@@ -15,11 +15,8 @@
 DigitalIn sw3(SW3);
 DigitalOut led(LED_RED);
 
-char OBD[3];
-
 char percent='%';
 int flag=1;
-char OBD[]={0x01}
 char zero[2]={0x01,0x0c,};
 char OBD[13];
 char RPM[13];
@@ -28,7 +25,7 @@
 char MAF[13];
 char THR[13];
 
-void OBDInit(void);
+int OBDInit(void);
 void OBDLiveData(void);
 int main() {
       char c;
@@ -41,12 +38,12 @@
     LCD.printString ("-ENHANCED-", 0, 0);
     LCD.printString ("-VEHICLE-", 0, 1);
     LCD.printString ("-DIAGNOSTICS-", 0, 2);
-    LCD.printString ("ECE 595", 0, 3);
-    LCD.printString ("SAM THOMAS", 0, 4);
+    //LCD.printString ("ECE 595", 0, 3);
+    //LCD.printString ("SAM THOMAS", 0, 4);
     wait(1);
     LCD.clear();
     LCD.printString ("-INITIALIZE-",0, 2);
-  
+    OBDInit();
     wait(1);
       LCD.clear();
       //HC05.printf(zero);
@@ -62,10 +59,13 @@
 
                 LCD.printString("THR 60", 0, 4);
                 }
+                else{
+                    OBDLiveData();
+                    }
           
            }
 }
-void OBDInit(){
+int OBDInit(){
     if(HC05.readable()){
         HC05.printf("ATZ\r");
         HC05.printf("ATSP0\r");
@@ -74,25 +74,20 @@
     }
     else
     {
-        LCD.printString("Bluetooth NOT available");
+        LCD.printString("Bluetooth NOT available",0,0);
         return 0;
     }
 }
 void OBDLiveData(){
+    char c;
     if(HC05.readable()){
-            c =HC05.getc();
-               
-
-            //SR.putc(c);
+           c=HC05.getc();
            if(c=='~')//Get the initial character sent
             { 
                 flag=0;
-                //for(int i=0;i<14:i++){
                 LCD.clear();
                 //takes in the whole string sent to it From PC below
                 HC05.scanf("%s",&OBD);
-                //OBD[i]=HC05.getc();
-                //}
                 SR.printf(OBD);
                 sprintf(RPM,"RPM %c%c%c%c",OBD[0],OBD[1],OBD[2],OBD[3]);
                 sprintf(SPD,"SPEED %c%cKMPH",OBD[4],OBD[5]);
@@ -127,8 +122,6 @@
                   wait(2);
                   }
                 }
-            }
-                
+              }
             }
-        
 }
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