Jeremy Hammel / Mbed 2 deprecated Power_Strip_Bluetooth

This a great example of how Bluetooth (BT) reads incoming chars. This program constantly check if a char has been sent over BT and then turns on or off a digital output on the K64F board. We used MIT App Inventor to download an app to a android phone. This app would connect to our HC06 BT module on the K64F. The app would send chars when certain buttons were pressed. The K64F would then receive them and take appropriate action. Our digital output would send signal to relays, that's why you see variables called relay1,2,3... The relays then allowed power to got to a power strip.

Dependencies:   mbed

Files at this revision

API Documentation at this revision

Revision 1:9ba4f4c2b414, committed 2019-04-29

Comitter:
jwhammel
Date:
Mon Apr 29 00:01:55 2019 +0000
Parent:
0:2fb6b3ddfcbd
Commit message:
This is a great example of how Bluetooth (BT) works. The program is constantly checking to see if a char has been sent over BT signal. This used the K64F and HC06. We used MIT App Inventor to make a program that will connect to our HC06 BT module.

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file 
diff -r 2fb6b3ddfcbd -r 9ba4f4c2b414 main.cpp
--- a/main.cpp	Wed Jan 02 18:37:58 2019 +0000
+++ b/main.cpp	Mon Apr 29 00:01:55 2019 +0000
@@ -1,34 +1,78 @@
 #include "mbed.h"
-CAN can1(PA_11, PA_12);
-Serial bluetooth(PA_9, PA_10); //PINS TO CONECT. PA_9 WITH RX PIN HC-06
-int dato=0;
+
+Serial bluetooth(PTC15, PTC14); // pins to connect on HC-06
+int mydata=0;
 
 
-DigitalOut led(PC_13);// LED BUILT IN BOARD STM32F103C8T6 
+DigitalOut led_r(LED1); // on board LED
+DigitalOut Relay1(PTC17);
+DigitalOut Relay2(PTB9);
+DigitalOut Relay3(PTA1);
+DigitalOut Relay4(PTB23);
+DigitalOut Relay5(PTA2);
 
 int main()
 
 {
+    Relay1 = 0;
+    Relay2 = 0;
+    Relay3 = 0;
+    Relay4 = 0;
+    Relay5 = 0;
+    led_r = 1;
+    
     bluetooth.baud(9600);
     bluetooth.printf("\nSTM32 bluetooth\n");
-    while(1) {
+    printf("\r\nready\r\n");
+    while(1) 
+    {
+
+        if(bluetooth.readable()) 
+        {
+            mydata=bluetooth.getc();
+            bluetooth.putc(mydata);
+            printf("mydata = %c\r\n",mydata);
+        } // end if
 
-    if(bluetooth.readable()) {
-          
-            dato=bluetooth.getc();
-            bluetooth.putc(dato);
-           
-       
-            }
-       if (dato=='a'){
-        led=0;
-        }
-        else if(dato=='b')
+        switch(mydata)
         {
-            led=1;
-            }
-        
+            case 'a':
+                Relay1 = 0;
+                break;
+            case 'A':
+                Relay1 = 1;
+                break;
+            case 'b':
+                Relay2 = 0;
+                break;
+            case 'B':
+                Relay2 = 1;
+                break;
+            case 'c':
+                Relay3 = 0;
+                break;
+            case 'C':
+                Relay3 = 1;
+                break;
+            case 'd':
+                Relay4 = 0;
+                break;
+            case 'D':
+                Relay4 = 1;
+                break;
+            case 'e':
+                Relay5 = 0;
+                break;
+            case 'E':
+                Relay5 = 1;
+                break;
+            default:
+                led_r = 0;
+        } // end switch
         
-        
-    }
-}
+        //wait(1.0f);
+        //printf("one second has elapsed.\r\n");
+                
+    } // end while
+    
+} // end main