main.cpp

00001 #include "mbed.h"
00002 #include "ble/BLE.h"
00003 #include "Sensors/Sensors.h"
00004 
00005 #define APP_SPECIFIC_ID_TEST 0xFEFE
00006 
00007 #pragma pack(1)
00008 struct ApplicationData_t {
00009     uint16_t applicationSpecificId;             /* An ID used to identify temperature value
00010                                                    in the manufacture specific AD data field */
00011     Sensors::tmpSensorValue_t tmpSensorValue;   /* User defined application data */
00012 };
00013 #pragma pack()
00014 
00015 BLE ble;
00016 Sensors tempSensor;
00017 DigitalOut led_r(P0_20);
00018 DigitalOut buzzer(P0_22);
00019 InterruptIn btn(P0_28);
00020 InterruptIn btn1(P0_29);
00021 static bool triggerTempValueUpdate = false;
00022 static bool start_flag = false;
00023 const static char   DEVICE_NAME[8] = "Linkab";   /*The size of the DEVICE_NAME[] can't change  */
00024 
00025 void periodicCallback(void)
00026 {
00027     /* Do blinky on LED1 while we're waiting for BLE events */
00028     triggerTempValueUpdate = true;
00029 }
00030 
00031 void accumulateApplicationData(ApplicationData_t &appData)
00032 {
00033     appData.applicationSpecificId = APP_SPECIFIC_ID_TEST;
00034     /* Read a new data value */
00035     appData.tmpSensorValue = tempSensor.get();
00036 }
00037 
00038 void temperatureValueAdvertising(void)
00039 { 
00040     ApplicationData_t appData;
00041     
00042     accumulateApplicationData(appData);
00043     
00044     /* Setup advertising payload */
00045     ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); /* Set flag */
00046     ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::GENERIC_THERMOMETER); /* Set appearance */
00047     ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
00048     ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::MANUFACTURER_SPECIFIC_DATA, (uint8_t *)&appData, sizeof(ApplicationData_t)); /* Set data */
00049     /* Setup advertising parameters */
00050     ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_NON_CONNECTABLE_UNDIRECTED);
00051     ble.gap().setAdvertisingInterval(300);
00052     /* Start advertising */
00053     ble.gap().startAdvertising();
00054 }
00055 
00056 void updateSensorValueInAdvPayload(void)
00057 {
00058     ApplicationData_t appData;
00059     
00060     accumulateApplicationData(appData);
00061     
00062     /* Stop advertising first */
00063     ble.gap().stopAdvertising();
00064     /* Only update data value field */
00065     ble.gap().updateAdvertisingPayload(GapAdvertisingData::MANUFACTURER_SPECIFIC_DATA, (uint8_t *)&appData, sizeof(ApplicationData_t));
00066     /* Start advertising again */
00067     ble.gap().startAdvertising();
00068 }
00069 
00070 void start_mode(void)
00071 {
00072     led_r=0;
00073     wait(0.2);
00074     led_r=1;
00075     wait(0.2);
00076     led_r=0;
00077     wait(0.2);
00078     led_r=1;   
00079     ble.gap().startAdvertising();
00080 }
00081 void stop_mode(void)
00082 {
00083     led_r=0;
00084     wait(0.5);
00085     led_r=1;
00086     wait(0.5);
00087     led_r=0;
00088     wait(0.5);
00089     led_r=1;
00090     ble.gap().stopAdvertising();
00091 }
00092 
00093 void change_startmode(void)
00094 {
00095 
00096     start_flag=!start_flag;
00097     if(start_flag==true) 
00098     {
00099         start_mode();    
00100     }
00101     else
00102     {
00103         stop_mode();    
00104     }
00105     printf("The state is %d\n",start_flag);
00106 }
00107 
00108 
00109 int main(void)
00110 {
00111     Ticker ticker;
00112     ticker.attach(periodicCallback,300);
00113     ble.init();
00114     led_r=1;
00115     buzzer=0;
00116     temperatureValueAdvertising();
00117     btn.fall(&change_startmode);
00118     btn1.fall(&updateSensorValueInAdvPayload);
00119     printf("This is a test!\n");
00120     while(true)
00121     {
00122          if(start_flag==true) 
00123          {
00124             if (triggerTempValueUpdate) 
00125             {
00126                 updateSensorValueInAdvPayload();
00127                 triggerTempValueUpdate = false;
00128             }
00129             ble.waitForEvent();
00130          }
00131         else 
00132         {
00133            ble.gap().stopAdvertising();
00134            ble.waitForEvent();
00135         }
00136      }
00137 }