Delta / Mbed 2 deprecated BLE_Glucose_Demo

Demo Glucose Service

Dependencies:   BLE_API mbed nRF51822

Fork of BLE_HeartRate by Bluetooth Low Energy

BLE_Glucose_demo implements the Glucose Service which enables a collector device to connect and interact with.

There is a brief sample code edited with Android Studio for demo this BLE_Glucose_demo example, and it is public on github, everyone can clone it by this URL: https://github.com/Marcomissyou/BluetoothLeGlucose.git. It is convenient for you to development your BLE idea.

There is also provided apk file so you can download and install it directly then demo this code, but make sure your Android phone supports Bluetooth 4.0. /media/uploads/Marcomissyou/bleglucoseservice.apk

Diff: main.cpp

Revision:
39:6390604f904c
Parent:
37:d310a72115c7
Child:
40:e73130c6f2bb
--- a/main.cpp	Fri Jul 25 17:23:34 2014 +0100
+++ b/main.cpp	Fri Aug 22 14:55:52 2014 +0000
@@ -16,7 +16,7 @@
 
 #include "mbed.h"
 #include "BLEDevice.h"
-#include "ble_hrs.h"
+#include "HeartRateService.h"
 
 BLEDevice  ble;
 DigitalOut led1(LED1);
@@ -31,28 +31,9 @@
 #define DEBUG(...) /* nothing */
 #endif /* #if NEED_CONSOLE_OUTPUT */
 
-const static char  DEVICE_NAME[] = "Nordic_HRM";
-
-/* Heart Rate Service */
-/* Service:  https://developer.bluetooth.org/gatt/services/Pages/ServiceViewer.aspx?u=org.bluetooth.service.heart_rate.xml */
-/* HRM Char: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.heart_rate_measurement.xml */
-/* Location: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.body_sensor_location.xml */
-static uint8_t hrmCounter = 100;
-static uint8_t bpm[2] = {0x00, hrmCounter};
-GattCharacteristic hrmRate(GattCharacteristic::UUID_HEART_RATE_MEASUREMENT_CHAR, bpm, sizeof(bpm), sizeof(bpm),
-                           GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY);
-static uint8_t location = BLE_HRS_BODY_SENSOR_LOCATION_FINGER;
-GattCharacteristic hrmLocation(GattCharacteristic::UUID_BODY_SENSOR_LOCATION_CHAR,
-                               (uint8_t *)&location, sizeof(location), sizeof(location),
-                               GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ);
-GattCharacteristic *hrmChars[] = {&hrmRate, &hrmLocation, };
-GattService        hrmService(GattService::UUID_HEART_RATE_SERVICE, hrmChars, sizeof(hrmChars) / sizeof(GattCharacteristic *));
-
-static const uint16_t uuid16_list[] = {GattService::UUID_HEART_RATE_SERVICE};
-
-static volatile bool triggerSensorPolling = false; /* set to high periodically to indicate to the main thread that
-                                                    * polling is necessary. */
-static Gap::ConnectionParams_t connectionParams;
+const static char     DEVICE_NAME[]        = "Nordic_HRM";
+static const uint16_t uuid16_list[]        = {GattService::UUID_HEART_RATE_SERVICE};
+static volatile bool  triggerSensorPolling = false;
 
 void disconnectionCallback(Gap::Handle_t handle)
 {
@@ -61,26 +42,13 @@
     ble.startAdvertising();
 }
 
-void onConnectionCallback(Gap::Handle_t handle)
-{
-    DEBUG("connected. Got handle %u\r\n", handle);
-
-    connectionParams.slaveLatency = 1;
-    if (ble.updateConnectionParams(handle, &connectionParams) != BLE_ERROR_NONE) {
-        DEBUG("failed to update connection paramter\r\n");
-    }
-}
-
-/**
- * Triggered periodically by the 'ticker' interrupt.
- */
 void periodicCallback(void)
 {
     led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */
-    triggerSensorPolling = true; /* Note that the periodicCallback() executes in
-                                  * interrupt context, so it is safer to do
-                                  * heavy-weight sensor polling from the main
-                                  * thread.*/
+
+    /* 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)
@@ -92,9 +60,6 @@
     DEBUG("Initialising the nRF51822\n\r");
     ble.init();
     ble.onDisconnection(disconnectionCallback);
-    ble.onConnection(onConnectionCallback);
-
-    ble.getPreferredConnectionParams(&connectionParams);
 
     /* setup advertising */
     ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
@@ -102,10 +67,11 @@
     ble.accumulateAdvertisingPayload(GapAdvertisingData::HEART_RATE_SENSOR_HEART_RATE_BELT);
     ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
     ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
-    ble.setAdvertisingInterval(160); /* 100ms; in multiples of 0.625ms. */
+    ble.setAdvertisingInterval(1600); /* 100ms; in multiples of 0.625ms. */
     ble.startAdvertising();
 
-    ble.addService(hrmService);
+    uint8_t hrmCounter = 100 ;
+    HeartRateService hrService(ble, hrmCounter, HeartRateService::BLE_HRS_BODY_SENSOR_LOCATION_FINGER);
 
     while (true) {
         if (triggerSensorPolling) {
@@ -118,12 +84,7 @@
                 hrmCounter = 100;
             }
 
-            if (ble.getGapState().connected) {
-                /* First byte = 8-bit values, no extra info, Second byte = uint8_t HRM value */
-                /* See --> https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.heart_rate_measurement.xml */
-                bpm[1] = hrmCounter;
-                ble.updateCharacteristicValue(hrmRate.getHandle(), bpm, sizeof(bpm));
-            }
+            hrService.updateHeartRate(hrmCounter);
         } else {
             ble.waitForEvent();
         }