Luke Pell / Mbed 2 deprecated bluetooth

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Dependencies:   mbed

main.cpp@1:41844163cb7f, 2019-03-26 (annotated)

Committer:
lmpell
Date:
Tue Mar 26 17:45:39 2019 +0000
Revision:
1:41844163cb7f
Parent:
0:755a36a9fc5c 
Added comments

Who changed what in which revision?

UserRevisionLine numberNew contents of line
lmpell 0:755a36a9fc5c 1 #include "mbed.h"
lmpell 0:755a36a9fc5c 2
lmpell 1:41844163cb7f 3 //tx, rx, baud rate
lmpell 1:41844163cb7f 4 Serial pc(USBTX, USBRX,9600);
lmpell 1:41844163cb7f 5 Serial blue(PTC15, PTC14, 115200); // for comm with bluetooth hc06
lmpell 1:41844163cb7f 6 Serial other(PTC17, PTC16, 115200);// for comm with S32K
lmpell 0:755a36a9fc5c 7 Ticker locker;
lmpell 0:755a36a9fc5c 8
lmpell 1:41844163cb7f 9 char prev = 'z'; //init states for use to determine if car needs to be locked
lmpell 0:755a36a9fc5c 10 char current = 'y';
lmpell 0:755a36a9fc5c 11 bool nflag = true;
lmpell 0:755a36a9fc5c 12
lmpell 1:41844163cb7f 13 // A callback function used to determine if car needs to be locked
lmpell 1:41844163cb7f 14 // it is called
lmpell 0:755a36a9fc5c 15 void lockCar()
lmpell 0:755a36a9fc5c 16 {
lmpell 0:755a36a9fc5c 17 pc.printf("ticker\r\n\r");
lmpell 0:755a36a9fc5c 18 char send[] = "bj";
lmpell 1:41844163cb7f 19
lmpell 1:41844163cb7f 20 //checks to see if not already locked
lmpell 0:755a36a9fc5c 21 if(nflag)
lmpell 0:755a36a9fc5c 22 {
lmpell 1:41844163cb7f 23 //if no new key is pressed lock car
lmpell 0:755a36a9fc5c 24 if(prev == current)
lmpell 0:755a36a9fc5c 25 {
lmpell 1:41844163cb7f 26 //stops motor.
lmpell 0:755a36a9fc5c 27 for(int i = 1; i< 50; i++){other.putc(send[1]);}
lmpell 0:755a36a9fc5c 28 wait(5);
lmpell 1:41844163cb7f 29 //locks car
lmpell 0:755a36a9fc5c 30 for(int i = 1; i< 50; i++){other.putc(send[0]);}
lmpell 0:755a36a9fc5c 31 prev = 'z';
lmpell 0:755a36a9fc5c 32 nflag = false;
lmpell 0:755a36a9fc5c 33 }
lmpell 0:755a36a9fc5c 34 else
lmpell 0:755a36a9fc5c 35 {
lmpell 0:755a36a9fc5c 36 prev = current;
lmpell 0:755a36a9fc5c 37 }
lmpell 0:755a36a9fc5c 38 }
lmpell 0:755a36a9fc5c 39 }
lmpell 0:755a36a9fc5c 40
lmpell 0:755a36a9fc5c 41 int main()
lmpell 0:755a36a9fc5c 42 {
lmpell 1:41844163cb7f 43 int i = 0;//init variables
lmpell 0:755a36a9fc5c 44 int j = 0;
lmpell 0:755a36a9fc5c 45 char hold[100] ="String";
lmpell 1:41844163cb7f 46 //attaches the callback function to a timer
lmpell 1:41844163cb7f 47 locker.attach(&lockCar, 20.0);
lmpell 0:755a36a9fc5c 48 pc.printf(hold);
lmpell 1:41844163cb7f 49 //controlling loop
lmpell 0:755a36a9fc5c 50 while (true)
lmpell 0:755a36a9fc5c 51 {
lmpell 1:41844163cb7f 52 //read from bluetooth if something is avalible
lmpell 0:755a36a9fc5c 53 while(blue.readable())
lmpell 0:755a36a9fc5c 54 {
lmpell 1:41844163cb7f 55 //puts characters from bluetooth in buffer
lmpell 0:755a36a9fc5c 56 hold[j++] = blue.getc();
lmpell 0:755a36a9fc5c 57 i = 10;
lmpell 0:755a36a9fc5c 58 nflag = true;
lmpell 0:755a36a9fc5c 59 }
lmpell 0:755a36a9fc5c 60
lmpell 1:41844163cb7f 61 //if buffer has elements
lmpell 0:755a36a9fc5c 62 while(i)
lmpell 0:755a36a9fc5c 63 {
lmpell 1:41844163cb7f 64 //put null at end of string
lmpell 0:755a36a9fc5c 65 hold[j] = '\0';
lmpell 1:41844163cb7f 66 //send element to S32K
lmpell 0:755a36a9fc5c 67 other.putc(hold[0]);
lmpell 1:41844163cb7f 68 //update flag for locking system
lmpell 0:755a36a9fc5c 69 current = hold[0];
lmpell 1:41844163cb7f 70 //display info to tera term
lmpell 0:755a36a9fc5c 71 pc.printf("%d:", i);
lmpell 0:755a36a9fc5c 72 pc.printf(hold);
lmpell 0:755a36a9fc5c 73 pc.putc('\n');
lmpell 0:755a36a9fc5c 74 pc.putc('\r');
lmpell 0:755a36a9fc5c 75 i--;
lmpell 0:755a36a9fc5c 76 }
lmpell 0:755a36a9fc5c 77
lmpell 0:755a36a9fc5c 78 j = 0;
lmpell 0:755a36a9fc5c 79 i=0;
lmpell 0:755a36a9fc5c 80 }
lmpell 0:755a36a9fc5c 81 }