boting ren / Mbed OS BLE_Server_BME280

This is an example to broadcast measured value of BME280 through BLE GATT service.

Dependencies:   BME280

please refer detail information at GitHub. https://github.com/soramame21/BLE_Server_BME280

source/main.cpp@4:a937975ebe7e, 2017-08-25 (annotated)

Committer:
Ren Boting
Date:
Fri Aug 25 15:47:39 2017 +0900
Revision:
4:a937975ebe7e
Parent:
3:4b41a1ba65c8 
Move print lines into a Debug option.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
edamame22 0:f22fa5cc4d56 1 #include "mbed.h"
edamame22 0:f22fa5cc4d56 2 #include "BME280.h"
edamame22 0:f22fa5cc4d56 3 #include "ble/BLE.h"
Ren Boting 3:4b41a1ba65c8 4 #include "ble/services/EnvironmentalService.h"
edamame22 0:f22fa5cc4d56 5
Ren Boting 4:a937975ebe7e 6 #if defined(_DEBUG)
Ren Boting 4:a937975ebe7e 7 Serial pc(USBTX, USBRX);
Ren Boting 4:a937975ebe7e 8 #endif
Ren Boting 4:a937975ebe7e 9
Ren Boting 3:4b41a1ba65c8 10 #if defined(TARGET_TY51822R3)
edamame22 0:f22fa5cc4d56 11 BME280 sensor(I2C_SDA0, I2C_SCL0);
edamame22 0:f22fa5cc4d56 12 #else
edamame22 0:f22fa5cc4d56 13 BME280 sensor(I2C_SDA, I2C_SCL);
edamame22 0:f22fa5cc4d56 14 #endif
edamame22 0:f22fa5cc4d56 15
edamame22 0:f22fa5cc4d56 16 const static char DEVICE_NAME[] = "BME280";
edamame22 0:f22fa5cc4d56 17 const static uint16_t uuid16_list[] = {GattService::UUID_ENVIRONMENTAL_SERVICE};
Ren Boting 3:4b41a1ba65c8 18 static EnvironmentalService *service = NULL;
Ren Boting 3:4b41a1ba65c8 19 static EventQueue eventQueue(/* event count */ 16 * EVENTS_EVENT_SIZE);
edamame22 0:f22fa5cc4d56 20
edamame22 0:f22fa5cc4d56 21 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
edamame22 0:f22fa5cc4d56 22 {
edamame22 0:f22fa5cc4d56 23 BLE::Instance(BLE::DEFAULT_INSTANCE).gap().startAdvertising(); // restart advertising
edamame22 0:f22fa5cc4d56 24 }
edamame22 0:f22fa5cc4d56 25
edamame22 0:f22fa5cc4d56 26 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
edamame22 0:f22fa5cc4d56 27 {
Ren Boting 3:4b41a1ba65c8 28 BLE &ble = params->ble;
edamame22 0:f22fa5cc4d56 29 ble_error_t error = params->error;
Ren Boting 3:4b41a1ba65c8 30 service = new EnvironmentalService(ble);
Ren Boting 4:a937975ebe7e 31 #if defined(_DEBUG)
Ren Boting 4:a937975ebe7e 32 pc.printf("Inside BLE..starting payload creation..\r\n");
Ren Boting 4:a937975ebe7e 33 #endif
edamame22 0:f22fa5cc4d56 34 ble.gap().onDisconnection(disconnectionCallback);
edamame22 0:f22fa5cc4d56 35
edamame22 0:f22fa5cc4d56 36 /* Setup advertising. */
edamame22 0:f22fa5cc4d56 37 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
edamame22 0:f22fa5cc4d56 38 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
edamame22 0:f22fa5cc4d56 39 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
edamame22 0:f22fa5cc4d56 40 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
Ren Boting 3:4b41a1ba65c8 41 ble.gap().setAdvertisingInterval(1000);
edamame22 0:f22fa5cc4d56 42 error = ble.gap().startAdvertising();
Ren Boting 4:a937975ebe7e 43 #if defined(_DEBUG)
Ren Boting 4:a937975ebe7e 44 pc.printf("ble.gap().startAdvertising() => %u\r\n", error);
Ren Boting 4:a937975ebe7e 45 #endif
edamame22 0:f22fa5cc4d56 46 }
edamame22 0:f22fa5cc4d56 47
Ren Boting 3:4b41a1ba65c8 48 void readSensorCallback(void)
Ren Boting 3:4b41a1ba65c8 49 {
edamame22 0:f22fa5cc4d56 50 float tmp_t, tmp_p, tmp_h;
Ren Boting 3:4b41a1ba65c8 51
Ren Boting 3:4b41a1ba65c8 52 if(service != NULL) {
Ren Boting 3:4b41a1ba65c8 53 tmp_t = sensor.getTemperature();
Ren Boting 3:4b41a1ba65c8 54 tmp_p = sensor.getPressure();
Ren Boting 3:4b41a1ba65c8 55 tmp_h = sensor.getHumidity();
Ren Boting 3:4b41a1ba65c8 56 service->updatePressure(tmp_p);
Ren Boting 3:4b41a1ba65c8 57 service->updateTemperature(tmp_t);
Ren Boting 3:4b41a1ba65c8 58 service->updateHumidity(tmp_h);
Ren Boting 4:a937975ebe7e 59 #if defined(_DEBUG)
Ren Boting 4:a937975ebe7e 60 pc.printf("%04.2f hPa, %2.2f degC, %2.2f %%\r\n", tmp_p, tmp_t, tmp_h );
Ren Boting 4:a937975ebe7e 61 #endif
edamame22 0:f22fa5cc4d56 62 }
edamame22 0:f22fa5cc4d56 63 }
edamame22 0:f22fa5cc4d56 64
Ren Boting 3:4b41a1ba65c8 65 void scheduleBleEventsProcessing(BLE::OnEventsToProcessCallbackContext* context)
Ren Boting 3:4b41a1ba65c8 66 {
Ren Boting 3:4b41a1ba65c8 67 BLE &ble = BLE::Instance();
Ren Boting 3:4b41a1ba65c8 68 eventQueue.call(Callback<void()>(&ble, &BLE::processEvents));
edamame22 0:f22fa5cc4d56 69 }
edamame22 0:f22fa5cc4d56 70
Ren Boting 3:4b41a1ba65c8 71 int main()
Ren Boting 3:4b41a1ba65c8 72 {
Ren Boting 3:4b41a1ba65c8 73 eventQueue.call_every(1000, readSensorCallback);
edamame22 0:f22fa5cc4d56 74
Ren Boting 3:4b41a1ba65c8 75 BLE &ble = BLE::Instance();
Ren Boting 3:4b41a1ba65c8 76 ble.onEventsToProcess(scheduleBleEventsProcessing);
Ren Boting 3:4b41a1ba65c8 77 ble.init(bleInitComplete);
edamame22 0:f22fa5cc4d56 78
Ren Boting 3:4b41a1ba65c8 79 eventQueue.dispatch_forever();
Ren Boting 3:4b41a1ba65c8 80
Ren Boting 3:4b41a1ba65c8 81 return 0;
edamame22 0:f22fa5cc4d56 82 }