Timothy Pierce / Mbed 2 deprecated lab5a

lab 5a

Dependencies:   mbed mbed-rtos tsi_sensor SLCD

HC06_bluetooth.h@2:cad0ec8e29a5, 2020-05-03 (annotated)

Committer:
teajaypierce
Date:
Sun May 03 12:55:12 2020 +0000
Revision:
2:cad0ec8e29a5
Parent:
0:78b84e1ce9df 
lab 5a

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wstapleton 0:78b84e1ce9df 1 #ifndef HC06_BLUETOOTH_H
wstapleton 0:78b84e1ce9df 2 #define HC06_BLUETOOTH_H
wstapleton 0:78b84e1ce9df 3
wstapleton 0:78b84e1ce9df 4 Serial bt(PTE16, PTE17);
wstapleton 0:78b84e1ce9df 5
wstapleton 0:78b84e1ce9df 6 char bt_c;
wstapleton 0:78b84e1ce9df 7 char bt_buffer[80];
wstapleton 0:78b84e1ce9df 8 char bt_name[80];
wstapleton 0:78b84e1ce9df 9 int bt_pin;
wstapleton 0:78b84e1ce9df 10 int bt_count;
wstapleton 0:78b84e1ce9df 11 int i;
wstapleton 0:78b84e1ce9df 12 int action;
wstapleton 0:78b84e1ce9df 13 int bt_baud[10]={0,1200,2400,4800,9600,19200,38400,57600,115200,230400};
wstapleton 0:78b84e1ce9df 14 int bt_baud_select=4;
wstapleton 0:78b84e1ce9df 15
wstapleton 0:78b84e1ce9df 16 int bt_baud_decode(int baud)
wstapleton 0:78b84e1ce9df 17 {
wstapleton 0:78b84e1ce9df 18 int target_baud;
wstapleton 0:78b84e1ce9df 19 target_baud=0;
wstapleton 0:78b84e1ce9df 20 if(baud >= 1 && baud <= 9)
wstapleton 0:78b84e1ce9df 21 {
wstapleton 0:78b84e1ce9df 22 target_baud=baud;
wstapleton 0:78b84e1ce9df 23 }
wstapleton 0:78b84e1ce9df 24 else
wstapleton 0:78b84e1ce9df 25 {
wstapleton 0:78b84e1ce9df 26 for(int i = 1; i <=9, i++)
wstapleton 0:78b84e1ce9df 27 {
wstapleton 0:78b84e1ce9df 28 if(baud == bt_baud(i))
wstapleton 0:78b84e1ce9df 29 {
wstapleton 0:78b84e1ce9df 30 target_baud=baud;
wstapleton 0:78b84e1ce9df 31 }
wstapleton 0:78b84e1ce9df 32 }
wstapleton 0:78b84e1ce9df 33 }
wstapleton 0:78b84e1ce9df 34 if(target_baud >0)
wstapleton 0:78b84e1ce9df 35 {
wstapleton 0:78b84e1ce9df 36 return(bt_baud(target_baud));
wstapleton 0:78b84e1ce9df 37 }
wstapleton 0:78b84e1ce9df 38 else
wstapleton 0:78b84e1ce9df 39 {
wstapleton 0:78b84e1ce9df 40 return(-1);
wstapleton 0:78b84e1ce9df 41 }
wstapleton 0:78b84e1ce9df 42 }
wstapleton 0:78b84e1ce9df 43
wstapleton 0:78b84e1ce9df 44 int bt_baud(int baud);
wstapleton 0:78b84e1ce9df 45 {
wstapleton 0:78b84e1ce9df 46 int target_baud;
wstapleton 0:78b84e1ce9df 47 target_baud=bt_baud_decode(baud);
wstapleton 0:78b84e1ce9df 48 if(target_baud > 0)
wstapleton 0:78b84e1ce9df 49 {
wstapleton 0:78b84e1ce9df 50 bt.baud(bt_baud(target_baud));
wstapleton 0:78b84e1ce9df 51 return(bt_baud(target_baud));
wstapleton 0:78b84e1ce9df 52 }
wstapleton 0:78b84e1ce9df 53 else
wstapleton 0:78b84e1ce9df 54 {
wstapleton 0:78b84e1ce9df 55 return(-1);
wstapleton 0:78b84e1ce9df 56 }
wstapleton 0:78b84e1ce9df 57 }
wstapleton 0:78b84e1ce9df 58
wstapleton 0:78b84e1ce9df 59 int bt_find_baud()
wstapleton 0:78b84e1ce9df 60 {
wstapleton 0:78b84e1ce9df 61
wstapleton 0:78b84e1ce9df 62 for(bt_baud_select=1; bt_baud_select<=9; bt_baud_select++)
wstapleton 0:78b84e1ce9df 63 {
wstapleton 0:78b84e1ce9df 64 // pc.printf("Trying case %1i: %i baud\n",bt_baud_select,bt_baud[bt_baud_select]);
wstapleton 0:78b84e1ce9df 65 bt.baud(bt_baud[bt_baud_select]);
wstapleton 0:78b84e1ce9df 66 // pc.printf("Sending \"AT\"\n");
wstapleton 0:78b84e1ce9df 67 bt_count=0;
wstapleton 0:78b84e1ce9df 68 bt_buffer[0]=0;
wstapleton 0:78b84e1ce9df 69 bt_buffer[1]=0;
wstapleton 0:78b84e1ce9df 70 bt.printf("AT"); /*ask bluetooth for response, expect "OK" */
wstapleton 0:78b84e1ce9df 71 // bt.printf("AT\r\n"); /*ask bluetooth for response, expect "OK" */
wstapleton 0:78b84e1ce9df 72
wstapleton 0:78b84e1ce9df 73 for( i=0; i<10000000; i++)
wstapleton 0:78b84e1ce9df 74 {
wstapleton 0:78b84e1ce9df 75 if(bt.readable())
wstapleton 0:78b84e1ce9df 76 {
wstapleton 0:78b84e1ce9df 77 bt_buffer[bt_count]=bt.getc();
wstapleton 0:78b84e1ce9df 78 pc.putc(bt_buffer[bt_count]);
wstapleton 0:78b84e1ce9df 79 if(bt_count==0 && bt_buffer[0]=='O')
wstapleton 0:78b84e1ce9df 80 {bt_count++;}
wstapleton 0:78b84e1ce9df 81 if(bt_count==1 && bt_buffer[1]=='K')
wstapleton 0:78b84e1ce9df 82 {bt_count++; break;}
wstapleton 0:78b84e1ce9df 83 }
wstapleton 0:78b84e1ce9df 84 }
wstapleton 0:78b84e1ce9df 85 if(bt_buffer[0]=='O' && bt_buffer[1]=='K')
wstapleton 0:78b84e1ce9df 86 {
wstapleton 0:78b84e1ce9df 87 // pc.printf("\nReceived \"OK\" at case %1i: %i baud\n",bt_baud_select,bt_baud[bt_baud_select]);
wstapleton 0:78b84e1ce9df 88 break;
wstapleton 0:78b84e1ce9df 89 }
wstapleton 0:78b84e1ce9df 90 else
wstapleton 0:78b84e1ce9df 91 {
wstapleton 0:78b84e1ce9df 92 // pc.printf("\nFailed to receive \"OK\" at case %1i: %i baud\n",bt_baud_select,bt_baud[bt_baud_select]);
wstapleton 0:78b84e1ce9df 93 }
wstapleton 0:78b84e1ce9df 94 }
wstapleton 0:78b84e1ce9df 95 if(bt_baud_select > 9)
wstapleton 0:78b84e1ce9df 96 {
wstapleton 0:78b84e1ce9df 97 // pc.printf("Unable to identify HC-06 Bluetooth baud rate.\nShutting down.\n");
wstapleton 0:78b84e1ce9df 98 return(-1);
wstapleton 0:78b84e1ce9df 99 }
wstapleton 0:78b84e1ce9df 100 else
wstapleton 0:78b84e1ce9df 101 {
wstapleton 0:78b84e1ce9df 102 return(bt_baud[bt_baud_select]);
wstapleton 0:78b84e1ce9df 103 }
wstapleton 0:78b84e1ce9df 104 }
wstapleton 0:78b84e1ce9df 105
wstapleton 0:78b84e1ce9df 106 int bt_default_baud(int baud);
wstapleton 0:78b84e1ce9df 107 {
wstapleton 0:78b84e1ce9df 108 int target_baud;
wstapleton 0:78b84e1ce9df 109 target_baud=lcd_baud_decode(baud);
wstapleton 0:78b84e1ce9df 110 if(target_baud < 0)
wstapleton 0:78b84e1ce9df 111 {
wstapleton 0:78b84e1ce9df 112 return(-1);
wstapleton 0:78b84e1ce9df 113 }
wstapleton 0:78b84e1ce9df 114 bt_baud(bt_find_baud());
wstapleton 0:78b84e1ce9df 115 bt.printf("AT+BAUD%1i",target_baud);
wstapleton 0:78b84e1ce9df 116 bt_baud(target_baud);
wstapleton 0:78b84e1ce9df 117 for( i=0; i<10000000; i++)
wstapleton 0:78b84e1ce9df 118 {
wstapleton 0:78b84e1ce9df 119 if(bt.readable())
wstapleton 0:78b84e1ce9df 120 {
wstapleton 0:78b84e1ce9df 121 bt.getc();
wstapleton 0:78b84e1ce9df 122 }
wstapleton 0:78b84e1ce9df 123 }
wstapleton 0:78b84e1ce9df 124 return(bt_baud[target_baud]);
wstapleton 0:78b84e1ce9df 125 }
wstapleton 0:78b84e1ce9df 126
wstapleton 0:78b84e1ce9df 127 int bt_device_name(char bt_name[])
wstapleton 0:78b84e1ce9df 128 {
wstapleton 0:78b84e1ce9df 129 bt.printf("AT+NAME%s",bt_name);
wstapleton 0:78b84e1ce9df 130 for( i=0; i<10000000; i++)
wstapleton 0:78b84e1ce9df 131 {
wstapleton 0:78b84e1ce9df 132 if(bt.readable())
wstapleton 0:78b84e1ce9df 133 {
wstapleton 0:78b84e1ce9df 134 bt.getc();
wstapleton 0:78b84e1ce9df 135 }
wstapleton 0:78b84e1ce9df 136 }
wstapleton 0:78b84e1ce9df 137 }
wstapleton 0:78b84e1ce9df 138
wstapleton 0:78b84e1ce9df 139 int bt_set_pin(int bt_pin)
wstapleton 0:78b84e1ce9df 140 {
wstapleton 0:78b84e1ce9df 141 if(bt_pin < 0 || bt_pin > 9999) {return(-1);}
wstapleton 0:78b84e1ce9df 142 bt.printf("AT+PIN%04i",bt_pin);
wstapleton 0:78b84e1ce9df 143 for( i=0; i<10000000; i++)
wstapleton 0:78b84e1ce9df 144 {
wstapleton 0:78b84e1ce9df 145 if(bt.readable())
wstapleton 0:78b84e1ce9df 146 {
wstapleton 0:78b84e1ce9df 147 bt.getc();
wstapleton 0:78b84e1ce9df 148 }
wstapleton 0:78b84e1ce9df 149 }
wstapleton 0:78b84e1ce9df 150
wstapleton 0:78b84e1ce9df 151 }
wstapleton 0:78b84e1ce9df 152
wstapleton 0:78b84e1ce9df 153
wstapleton 0:78b84e1ce9df 154 #endif //HC06_BLUETOOTH_H