Getting Started with BlueNRG Shield

Diff: main.cpp

Revision:

0:5aa20a65f094

diff -r 000000000000 -r 5aa20a65f094 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Dec 19 19:39:57 2014 +0000
@@ -0,0 +1,104 @@
+/* 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 "mbed.h"
+#include "BLEDevice.h"
+#include "HeartRateService.h"
+#include "BatteryService.h"
+#include "DeviceInformationService.h"
+#include "Utils.h"
+
+BLEDevice  ble;
+DigitalOut led1(LED1);
+
+const static char     DEVICE_NAME[]        = "BlueNRG_HRM";
+static const uint16_t uuid16_list[]        = {GattService::UUID_HEART_RATE_SERVICE,
+                                              GattService::UUID_BATTERY_SERVICE,
+                                              GattService::UUID_DEVICE_INFORMATION_SERVICE};
+static volatile bool  triggerSensorPolling = false;
+
+void disconnectionCallback(Gap::Handle_t handle, Gap::DisconnectionReason_t reason)
+{
+    DEBUG("Disconnected!\n\r");
+    DEBUG("Restarting the advertising process\n\r");
+    ble.startAdvertising(); // restart advertising
+}
+
+void connectionCallback(Gap::Handle_t handle, const Gap::ConnectionParams_t *reason)
+{
+    DEBUG("Connected\r\n");
+}
+
+void periodicCallback(void)
+{
+    led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */
+
+    /* Note that the periodicCallback() executes in interrupt context, so it is safer to do
+     * heavy-weight sensor polling from the main thread. */
+    triggerSensorPolling = true;
+}
+
+int main(void)
+{
+    led1 = 1;
+    Ticker ticker;
+    ticker.attach(periodicCallback, 1);
+
+    DEBUG("Initialising \n\r");
+    ble.init();
+    ble.onDisconnection(disconnectionCallback);
+    ble.onConnection(connectionCallback);
+
+    /* Setup primary service. */
+    uint8_t hrmCounter = 100;
+    HeartRateService hrService(ble, hrmCounter, HeartRateService::LOCATION_FINGER);
+
+    /* Setup auxiliary services. */
+    BatteryService           battery(ble);
+    DeviceInformationService deviceInfo(ble, "ST", "Nucleo", "SN1", "hw-rev1", "fw-rev1", "soft-rev1");
+
+    /* Setup advertising. */
+    ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
+    ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
+    ble.accumulateAdvertisingPayload(GapAdvertisingData::GENERIC_HEART_RATE_SENSOR);
+    ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
+    ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
+    ble.setAdvertisingInterval(1600); /* 1000ms; in multiples of 0.625ms. */
+    ble.startAdvertising();
+
+    while (true)
+    {
+        if (triggerSensorPolling)
+        {
+            triggerSensorPolling = false;
+
+            /* Do blocking calls or whatever is necessary for sensor polling. */
+            /* In our case, we simply update the dummy HRM measurement. */
+            hrmCounter++;
+            
+            if (hrmCounter == 175)
+            {
+                hrmCounter = 100;
+            }
+
+            hrService.updateHeartRate(hrmCounter);
+        } 
+        else
+        {
+            ble.waitForEvent();
+        }
+    }
+}