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

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Show/hide line numbers main.cpp Source File

main.cpp

00001 #include "mbed.h"
00002 
00003 Serial bluetooth(PTC15, PTC14); // pins to connect on HC-06
00004 int mydata=0;
00005 
00006 
00007 DigitalOut led_r(LED1); // on board LED
00008 DigitalOut Relay1(PTC17);
00009 DigitalOut Relay2(PTB9);
00010 DigitalOut Relay3(PTA1);
00011 DigitalOut Relay4(PTB23);
00012 DigitalOut Relay5(PTA2);
00013 
00014 int main()
00015 
00016 {
00017     Relay1 = 0;
00018     Relay2 = 0;
00019     Relay3 = 0;
00020     Relay4 = 0;
00021     Relay5 = 0;
00022     led_r = 1;
00023     
00024     bluetooth.baud(9600);
00025     bluetooth.printf("\nSTM32 bluetooth\n");
00026     printf("\r\nready\r\n");
00027     while(1) 
00028     {
00029 
00030         if(bluetooth.readable()) 
00031         {
00032             mydata=bluetooth.getc();
00033             bluetooth.putc(mydata);
00034             printf("mydata = %c\r\n",mydata);
00035         } // end if
00036 
00037         switch(mydata)
00038         {
00039             case 'a':
00040                 Relay1 = 0;
00041                 break;
00042             case 'A':
00043                 Relay1 = 1;
00044                 break;
00045             case 'b':
00046                 Relay2 = 0;
00047                 break;
00048             case 'B':
00049                 Relay2 = 1;
00050                 break;
00051             case 'c':
00052                 Relay3 = 0;
00053                 break;
00054             case 'C':
00055                 Relay3 = 1;
00056                 break;
00057             case 'd':
00058                 Relay4 = 0;
00059                 break;
00060             case 'D':
00061                 Relay4 = 1;
00062                 break;
00063             case 'e':
00064                 Relay5 = 0;
00065                 break;
00066             case 'E':
00067                 Relay5 = 1;
00068                 break;
00069             default:
00070                 led_r = 0;
00071         } // end switch
00072         
00073         //wait(1.0f);
00074         //printf("one second has elapsed.\r\n");
00075                 
00076     } // end while
00077     
00078 } // end main
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