Diff: mbed-os-example-ble-master/BLE_Thermometer/source/main.cpp

Revision:

0:599bc564478b

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os-example-ble-master/BLE_Thermometer/source/main.cpp	Fri Jun 29 01:19:08 2018 +0000
@@ -0,0 +1,119 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2013 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <events/mbed_events.h>
+#include "mbed.h"
+#include "ble/BLE.h"
+#include "ble/services/HealthThermometerService.h"
+
+DigitalOut led1(LED1, 1);
+
+const static char     DEVICE_NAME[]        = "Therm";
+static const uint16_t uuid16_list[]        = {GattService::UUID_HEALTH_THERMOMETER_SERVICE};
+
+static float                     currentTemperature   = 39.6;
+static HealthThermometerService *thermometerServicePtr;
+
+static EventQueue eventQueue(/* event count */ 16 * EVENTS_EVENT_SIZE);
+
+/* Restart Advertising on disconnection*/
+void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *)
+{
+    BLE::Instance().gap().startAdvertising();
+}
+
+void updateSensorValue(void) {
+    /* Do blocking calls or whatever is necessary for sensor polling.
+       In our case, we simply update the Temperature measurement. */
+    currentTemperature = (currentTemperature + 0.1 > 43.0) ? 39.6 : currentTemperature + 0.1;
+    thermometerServicePtr->updateTemperature(currentTemperature);
+}
+
+void periodicCallback(void)
+{
+    led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */
+
+    if (BLE::Instance().gap().getState().connected) {
+        eventQueue.call(updateSensorValue);
+    }
+}
+
+void onBleInitError(BLE &ble, ble_error_t error)
+{
+   /* Initialization error handling should go here */
+}
+
+void printMacAddress()
+{
+    /* Print out device MAC address to the console*/
+    Gap::AddressType_t addr_type;
+    Gap::Address_t address;
+    BLE::Instance().gap().getAddress(&addr_type, address);
+    printf("DEVICE MAC ADDRESS: ");
+    for (int i = 5; i >= 1; i--){
+        printf("%02x:", address[i]);
+    }
+    printf("%02x\r\n", address[0]);
+}
+
+void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
+{
+    BLE&        ble   = params->ble;
+    ble_error_t error = params->error;
+
+    if (error != BLE_ERROR_NONE) {
+        onBleInitError(ble, error);
+        return;
+    }
+
+    if (ble.getInstanceID() != BLE::DEFAULT_INSTANCE) {
+        return;
+    }
+
+    ble.gap().onDisconnection(disconnectionCallback);
+
+    /* Setup primary service. */
+    thermometerServicePtr = new HealthThermometerService(ble, currentTemperature, HealthThermometerService::LOCATION_EAR);
+
+    /* setup advertising */
+    ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
+    ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
+    ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::THERMOMETER_EAR);
+    ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
+    ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
+    ble.gap().setAdvertisingInterval(1000); /* 1000ms */
+    ble.gap().startAdvertising();
+
+    printMacAddress();
+}
+
+void scheduleBleEventsProcessing(BLE::OnEventsToProcessCallbackContext* context) {
+    BLE &ble = BLE::Instance();
+    eventQueue.call(Callback<void()>(&ble, &BLE::processEvents));
+}
+
+int main()
+{
+    eventQueue.call_every(500, periodicCallback);
+
+    BLE &ble = BLE::Instance();
+    ble.onEventsToProcess(scheduleBleEventsProcessing);
+    ble.init(bleInitComplete);
+
+    eventQueue.dispatch_forever();
+
+    return 0;
+}