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

Committer:
rgrover1
Date:
Tue Sep 02 16:17:18 2014 +0000
Revision:
41:9cef0129da5f
Parent:
40:e73130c6f2bb
Child:
42:06ebef2e0e44
updated underlying libraries

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ktownsend 0:87a7fc231fae 1 /* mbed Microcontroller Library
ktownsend 0:87a7fc231fae 2 * Copyright (c) 2006-2013 ARM Limited
ktownsend 0:87a7fc231fae 3 *
ktownsend 0:87a7fc231fae 4 * Licensed under the Apache License, Version 2.0 (the "License");
ktownsend 0:87a7fc231fae 5 * you may not use this file except in compliance with the License.
ktownsend 0:87a7fc231fae 6 * You may obtain a copy of the License at
ktownsend 0:87a7fc231fae 7 *
ktownsend 0:87a7fc231fae 8 * http://www.apache.org/licenses/LICENSE-2.0
ktownsend 0:87a7fc231fae 9 *
ktownsend 0:87a7fc231fae 10 * Unless required by applicable law or agreed to in writing, software
ktownsend 0:87a7fc231fae 11 * distributed under the License is distributed on an "AS IS" BASIS,
ktownsend 0:87a7fc231fae 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
ktownsend 0:87a7fc231fae 13 * See the License for the specific language governing permissions and
ktownsend 0:87a7fc231fae 14 * limitations under the License.
ktownsend 0:87a7fc231fae 15 */
ktownsend 0:87a7fc231fae 16
ktownsend 0:87a7fc231fae 17 #include "mbed.h"
Rohit Grover 10:2436164b692e 18 #include "BLEDevice.h"
rgrover1 39:6390604f904c 19 #include "HeartRateService.h"
ktownsend 0:87a7fc231fae 20
Rohit Grover 10:2436164b692e 21 BLEDevice ble;
Rohit Grover 3:24e2b056d229 22 DigitalOut led1(LED1);
Rohit Grover 9:5d693381e883 23
Rohit Grover 9:5d693381e883 24 #define NEED_CONSOLE_OUTPUT 0 /* Set this if you need debug messages on the console;
Rohit Grover 22:299658c5fa3c 25 * it will have an impact on code-size and power consumption. */
Rohit Grover 9:5d693381e883 26
Rohit Grover 9:5d693381e883 27 #if NEED_CONSOLE_OUTPUT
Rohit Grover 9:5d693381e883 28 Serial pc(USBTX, USBRX);
Rohit Grover 9:5d693381e883 29 #define DEBUG(...) { pc.printf(__VA_ARGS__); }
Rohit Grover 9:5d693381e883 30 #else
Rohit Grover 9:5d693381e883 31 #define DEBUG(...) /* nothing */
Rohit Grover 9:5d693381e883 32 #endif /* #if NEED_CONSOLE_OUTPUT */
ktownsend 0:87a7fc231fae 33
rgrover1 39:6390604f904c 34 const static char DEVICE_NAME[] = "Nordic_HRM";
rgrover1 39:6390604f904c 35 static const uint16_t uuid16_list[] = {GattService::UUID_HEART_RATE_SERVICE};
rgrover1 39:6390604f904c 36 static volatile bool triggerSensorPolling = false;
Rohit Grover 36:ea2a1b4f51c1 37
rgrover1 41:9cef0129da5f 38 void disconnectionCallback(Gap::Handle_t handle, Gap::DisconnectionReason_t reason)
ktownsend 0:87a7fc231fae 39 {
Rohit Grover 35:ba3e3174331a 40 DEBUG("Disconnected handle %u!\n\r", handle);
Rohit Grover 9:5d693381e883 41 DEBUG("Restarting the advertising process\n\r");
rgrover1 7:daab8ba5139e 42 ble.startAdvertising();
rgrover1 7:daab8ba5139e 43 }
Rohit Grover 3:24e2b056d229 44
Rohit Grover 11:1d9aafee4984 45 void periodicCallback(void)
Rohit Grover 11:1d9aafee4984 46 {
Rohit Grover 11:1d9aafee4984 47 led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */
rgrover1 39:6390604f904c 48
rgrover1 39:6390604f904c 49 /* Note that the periodicCallback() executes in interrupt context, so it is safer to do
rgrover1 39:6390604f904c 50 * heavy-weight sensor polling from the main thread. */
rgrover1 39:6390604f904c 51 triggerSensorPolling = true;
Rohit Grover 11:1d9aafee4984 52 }
Rohit Grover 11:1d9aafee4984 53
ktownsend 0:87a7fc231fae 54 int main(void)
ktownsend 0:87a7fc231fae 55 {
Rohit Grover 3:24e2b056d229 56 led1 = 1;
Rohit Grover 11:1d9aafee4984 57 Ticker ticker;
Rohit Grover 11:1d9aafee4984 58 ticker.attach(periodicCallback, 1);
ktownsend 0:87a7fc231fae 59
Rohit Grover 15:7ba28817e31e 60 DEBUG("Initialising the nRF51822\n\r");
Rohit Grover 15:7ba28817e31e 61 ble.init();
rgrover1 7:daab8ba5139e 62 ble.onDisconnection(disconnectionCallback);
ktownsend 0:87a7fc231fae 63
Rohit Grover 15:7ba28817e31e 64 /* setup advertising */
Rohit Grover 29:76d865c718a6 65 ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
rgrover1 40:e73130c6f2bb 66 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
rgrover1 7:daab8ba5139e 67 ble.accumulateAdvertisingPayload(GapAdvertisingData::HEART_RATE_SENSOR_HEART_RATE_BELT);
Rohit Grover 29:76d865c718a6 68 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
rgrover1 7:daab8ba5139e 69 ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
rgrover1 40:e73130c6f2bb 70 ble.setAdvertisingInterval(1600); /* 1000ms; in multiples of 0.625ms. */
rgrover1 7:daab8ba5139e 71 ble.startAdvertising();
Rohit Grover 3:24e2b056d229 72
rgrover1 40:e73130c6f2bb 73 uint8_t hrmCounter = 100;
rgrover1 41:9cef0129da5f 74 HeartRateService hrService(ble, hrmCounter, HeartRateService::LOCATION_FINGER);
ktownsend 0:87a7fc231fae 75
Rohit Grover 11:1d9aafee4984 76 while (true) {
Rohit Grover 36:ea2a1b4f51c1 77 if (triggerSensorPolling) {
Rohit Grover 36:ea2a1b4f51c1 78 triggerSensorPolling = false;
Rohit Grover 36:ea2a1b4f51c1 79
Rohit Grover 36:ea2a1b4f51c1 80 /* Do blocking calls or whatever is necessary for sensor polling. */
Rohit Grover 36:ea2a1b4f51c1 81 /* In our case, we simply update the dummy HRM measurement. */
Rohit Grover 36:ea2a1b4f51c1 82 hrmCounter++;
Rohit Grover 36:ea2a1b4f51c1 83 if (hrmCounter == 175) {
Rohit Grover 36:ea2a1b4f51c1 84 hrmCounter = 100;
Rohit Grover 36:ea2a1b4f51c1 85 }
Rohit Grover 36:ea2a1b4f51c1 86
rgrover1 39:6390604f904c 87 hrService.updateHeartRate(hrmCounter);
Rohit Grover 36:ea2a1b4f51c1 88 } else {
Rohit Grover 36:ea2a1b4f51c1 89 ble.waitForEvent();
Rohit Grover 36:ea2a1b4f51c1 90 }
ktownsend 0:87a7fc231fae 91 }
ktownsend 0:87a7fc231fae 92 }