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 {
00010     uint16_t applicationSpecificId;             /* An ID used to identify temperature value
00011                                                    in the manufacture specific AD data field */
00012     Sensors::tmpSensorValue_t tmpSensorValue;   /* User defined application data */
00013 };
00014 #pragma pack()
00015 
00016 BLE ble;
00017 Sensors tempSensor;
00018 DigitalOut led(P0_19);
00019 static bool triggerTempValueUpdate = false;
00020 const static char   DEVICE_NAME[8] = "Linkaa";   /*The size of the DEVICE_NAME[] can't change  */
00021 
00022 void periodicCallback(void)
00023 {
00024     /* Do blinky on LED1 while we're waiting for BLE events */
00025     led = !led;
00026     triggerTempValueUpdate = true;
00027 }
00028 
00029 void accumulateApplicationData(ApplicationData_t &appData)
00030 {
00031     appData.applicationSpecificId = APP_SPECIFIC_ID_TEST;
00032     /* Read a new data value */
00033     appData.tmpSensorValue = tempSensor.get();
00034 }
00035 
00036 void temperatureValueAdvertising(void)
00037 { 
00038     ApplicationData_t appData;
00039     
00040     accumulateApplicationData(appData);
00041     
00042     /* Setup advertising payload */
00043     ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); /* Set flag */
00044     ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::GENERIC_THERMOMETER); /* Set appearance */
00045     ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
00046     ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::MANUFACTURER_SPECIFIC_DATA, (uint8_t *)&appData, sizeof(ApplicationData_t)); /* Set data */
00047     /* Setup advertising parameters */
00048     ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_NON_CONNECTABLE_UNDIRECTED);
00049     ble.gap().setAdvertisingInterval(500);
00050     /* Start advertising */
00051     ble.gap().startAdvertising();
00052 }
00053 
00054 void updateSensorValueInAdvPayload(void)
00055 {
00056     ApplicationData_t appData;
00057     
00058     accumulateApplicationData(appData);
00059     
00060     /* Stop advertising first */
00061     ble.gap().stopAdvertising();
00062     /* Only update data value field */
00063     ble.gap().updateAdvertisingPayload(GapAdvertisingData::MANUFACTURER_SPECIFIC_DATA, (uint8_t *)&appData, sizeof(ApplicationData_t));
00064     /* Start advertising again */
00065     ble.gap().startAdvertising();
00066 }
00067 
00068 int main(void)
00069 {
00070     Ticker ticker;
00071     ticker.attach(periodicCallback, 0.3);
00072     ble.init();
00073     /* Start data advertising */
00074     temperatureValueAdvertising();
00075     
00076     while (true) 
00077     {
00078 
00079         if (triggerTempValueUpdate) 
00080         {
00081             /* Update data value */
00082             updateSensorValueInAdvPayload();
00083             triggerTempValueUpdate = false;
00084         }
00085         ble.waitForEvent();
00086     }
00087 }