Demo Glucose Service
Dependencies: BLE_API mbed nRF51822
Fork of BLE_HeartRate by
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
main.cpp@39:6390604f904c, 2014-08-22 (annotated)
- Committer:
- rgrover1
- Date:
- Fri Aug 22 14:55:52 2014 +0000
- Revision:
- 39:6390604f904c
- Parent:
- 37:d310a72115c7
- Child:
- 40:e73130c6f2bb
Extract HeartRateService as a template to simplify the main application.
Who changed what in which revision?
User | Revision | Line number | New 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 | |
Rohit Grover |
35:ba3e3174331a | 38 | void disconnectionCallback(Gap::Handle_t handle) |
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); |
Rohit Grover |
27:97adf2b76b9c | 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 | 39:6390604f904c | 70 | ble.setAdvertisingInterval(1600); /* 100ms; in multiples of 0.625ms. */ |
rgrover1 | 7:daab8ba5139e | 71 | ble.startAdvertising(); |
Rohit Grover |
3:24e2b056d229 | 72 | |
rgrover1 | 39:6390604f904c | 73 | uint8_t hrmCounter = 100 ; |
rgrover1 | 39:6390604f904c | 74 | HeartRateService hrService(ble, hrmCounter, HeartRateService::BLE_HRS_BODY_SENSOR_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 | } |