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

main.cpp@29:76d865c718a6, 2014-07-04 (annotated)

Committer:
Rohit Grover
Date:
Fri Jul 04 15:06:51 2014 +0100
Revision:
29:76d865c718a6
Parent:
28:bdfc8cc53f0b
Child:
30:3dc9e6f2bc8c
HRM demo now works with the nordic Android App (nRFToolBox)

Was missing the LE_GENERAL_DISCOVERABLE advertising flag.

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"
ktownsend 0:87a7fc231fae 19
Rohit Grover 10:2436164b692e 20 BLEDevice ble;
Rohit Grover 3:24e2b056d229 21 DigitalOut led1(LED1);
Rohit Grover 9:5d693381e883 22
Rohit Grover 9:5d693381e883 23 #define NEED_CONSOLE_OUTPUT 0 /* Set this if you need debug messages on the console;
Rohit Grover 22:299658c5fa3c 24 * it will have an impact on code-size and power consumption. */
Rohit Grover 9:5d693381e883 25
Rohit Grover 9:5d693381e883 26 #if NEED_CONSOLE_OUTPUT
Rohit Grover 9:5d693381e883 27 Serial pc(USBTX, USBRX);
Rohit Grover 9:5d693381e883 28 #define DEBUG(...) { pc.printf(__VA_ARGS__); }
Rohit Grover 9:5d693381e883 29 #else
Rohit Grover 9:5d693381e883 30 #define DEBUG(...) /* nothing */
Rohit Grover 9:5d693381e883 31 #endif /* #if NEED_CONSOLE_OUTPUT */
ktownsend 0:87a7fc231fae 32
Rohit Grover 28:bdfc8cc53f0b 33 /* Battery Level Service */
Rohit Grover 28:bdfc8cc53f0b 34 static const uint8_t batt = 72; /* Battery level */
Rohit Grover 28:bdfc8cc53f0b 35 GattCharacteristic battLevel(GattCharacteristic::UUID_BATTERY_LEVEL_CHAR, (uint8_t *)&batt, sizeof(uint8_t), sizeof(uint8_t),
Rohit Grover 28:bdfc8cc53f0b 36 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ);
Rohit Grover 28:bdfc8cc53f0b 37 GattCharacteristic *battLevelChars[] = {&battLevel};
Rohit Grover 28:bdfc8cc53f0b 38 GattService battService(GattService::UUID_BATTERY_SERVICE, battLevelChars, sizeof(battLevelChars) / sizeof(GattCharacteristic *));
Rohit Grover 28:bdfc8cc53f0b 39
Rohit Grover 26:e6ad33b227c6 40 /* Device Information service */
Rohit Grover 29:76d865c718a6 41 const static char DEVICE_NAME[] = "Nordic_HRM";
Rohit Grover 29:76d865c718a6 42 GattCharacteristic deviceManufacturer(GattCharacteristic::UUID_MANUFACTURER_NAME_STRING_CHAR, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME), sizeof(DEVICE_NAME),
Rohit Grover 26:e6ad33b227c6 43 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ);
Rohit Grover 26:e6ad33b227c6 44 GattCharacteristic *deviceInformationChars[] = {&deviceManufacturer};
Rohit Grover 26:e6ad33b227c6 45 GattService deviceInformationService(GattService::UUID_DEVICE_INFORMATION_SERVICE, deviceInformationChars,
Rohit Grover 26:e6ad33b227c6 46 sizeof(deviceInformationChars) / sizeof(GattCharacteristic *));
Rohit Grover 26:e6ad33b227c6 47
ktownsend 0:87a7fc231fae 48 /* Heart Rate Service */
ktownsend 0:87a7fc231fae 49 /* Service: https://developer.bluetooth.org/gatt/services/Pages/ServiceViewer.aspx?u=org.bluetooth.service.heart_rate.xml */
ktownsend 0:87a7fc231fae 50 /* HRM Char: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.heart_rate_measurement.xml */
ktownsend 0:87a7fc231fae 51 /* Location: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.body_sensor_location.xml */
Rohit Grover 18:8a2e313f49cb 52 static uint8_t hrmCounter = 100;
Rohit Grover 18:8a2e313f49cb 53 static uint8_t bpm[2] = {0x00, hrmCounter};
Rohit Grover 20:58bff62d0f7a 54 GattCharacteristic hrmRate(GattCharacteristic::UUID_HEART_RATE_MEASUREMENT_CHAR, bpm, sizeof(bpm), sizeof(bpm),
Rohit Grover 20:58bff62d0f7a 55 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY);
Rohit Grover 18:8a2e313f49cb 56 static const uint8_t location = 0x03; /* Finger */
Rohit Grover 18:8a2e313f49cb 57 GattCharacteristic hrmLocation(GattCharacteristic::UUID_BODY_SENSOR_LOCATION_CHAR,
Rohit Grover 18:8a2e313f49cb 58 (uint8_t *)&location, sizeof(location), sizeof(location),
Rohit Grover 18:8a2e313f49cb 59 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ);
Rohit Grover 22:299658c5fa3c 60 GattCharacteristic *hrmChars[] = {&hrmRate, &hrmLocation, };
Rohit Grover 19:1713b11694ea 61 GattService hrmService(GattService::UUID_HEART_RATE_SERVICE, hrmChars, sizeof(hrmChars) / sizeof(GattCharacteristic *));
ktownsend 0:87a7fc231fae 62
Rohit Grover 28:bdfc8cc53f0b 63 static const uint16_t uuid16_list[] = {GattService::UUID_BATTERY_SERVICE, GattService::UUID_DEVICE_INFORMATION_SERVICE, GattService::UUID_HEART_RATE_SERVICE};
Rohit Grover 27:97adf2b76b9c 64
rgrover1 7:daab8ba5139e 65 void disconnectionCallback(void)
ktownsend 0:87a7fc231fae 66 {
Rohit Grover 9:5d693381e883 67 DEBUG("Disconnected!\n\r");
Rohit Grover 9:5d693381e883 68 DEBUG("Restarting the advertising process\n\r");
rgrover1 7:daab8ba5139e 69 ble.startAdvertising();
rgrover1 7:daab8ba5139e 70 }
Rohit Grover 3:24e2b056d229 71
Rohit Grover 13:3ca2045597e7 72 /**
Rohit Grover 22:299658c5fa3c 73 * Triggered periodically by the 'ticker' interrupt; updates hrmCounter.
Rohit Grover 13:3ca2045597e7 74 */
Rohit Grover 11:1d9aafee4984 75 void periodicCallback(void)
Rohit Grover 11:1d9aafee4984 76 {
Rohit Grover 11:1d9aafee4984 77 led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */
Rohit Grover 11:1d9aafee4984 78
Rohit Grover 11:1d9aafee4984 79 if (ble.getGapState().connected) {
Rohit Grover 11:1d9aafee4984 80 /* Update the HRM measurement */
Rohit Grover 11:1d9aafee4984 81 /* First byte = 8-bit values, no extra info, Second byte = uint8_t HRM value */
Rohit Grover 11:1d9aafee4984 82 /* See --> https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.heart_rate_measurement.xml */
Rohit Grover 11:1d9aafee4984 83 hrmCounter++;
Rohit Grover 11:1d9aafee4984 84 if (hrmCounter == 175) {
Rohit Grover 11:1d9aafee4984 85 hrmCounter = 100;
Rohit Grover 11:1d9aafee4984 86 }
Rohit Grover 18:8a2e313f49cb 87 bpm[1] = hrmCounter;
Rohit Grover 11:1d9aafee4984 88 ble.updateCharacteristicValue(hrmRate.getHandle(), bpm, sizeof(bpm));
Rohit Grover 11:1d9aafee4984 89 }
Rohit Grover 11:1d9aafee4984 90 }
Rohit Grover 11:1d9aafee4984 91
ktownsend 0:87a7fc231fae 92 int main(void)
ktownsend 0:87a7fc231fae 93 {
Rohit Grover 3:24e2b056d229 94 led1 = 1;
Rohit Grover 11:1d9aafee4984 95 Ticker ticker;
Rohit Grover 11:1d9aafee4984 96 ticker.attach(periodicCallback, 1);
ktownsend 0:87a7fc231fae 97
Rohit Grover 15:7ba28817e31e 98 DEBUG("Initialising the nRF51822\n\r");
Rohit Grover 15:7ba28817e31e 99 ble.init();
rgrover1 7:daab8ba5139e 100 ble.onDisconnection(disconnectionCallback);
ktownsend 0:87a7fc231fae 101
Rohit Grover 15:7ba28817e31e 102 /* setup advertising */
Rohit Grover 29:76d865c718a6 103 ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
Rohit Grover 27:97adf2b76b9c 104 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t*)uuid16_list, sizeof(uuid16_list));
rgrover1 7:daab8ba5139e 105 ble.accumulateAdvertisingPayload(GapAdvertisingData::HEART_RATE_SENSOR_HEART_RATE_BELT);
Rohit Grover 29:76d865c718a6 106 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
rgrover1 7:daab8ba5139e 107 ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
rgrover1 7:daab8ba5139e 108 ble.setAdvertisingInterval(160); /* 100ms; in multiples of 0.625ms. */
rgrover1 7:daab8ba5139e 109 ble.startAdvertising();
Rohit Grover 3:24e2b056d229 110
Rohit Grover 28:bdfc8cc53f0b 111 ble.addService(battService);
Rohit Grover 26:e6ad33b227c6 112 ble.addService(deviceInformationService);
Rohit Grover 11:1d9aafee4984 113 ble.addService(hrmService);
ktownsend 0:87a7fc231fae 114
Rohit Grover 11:1d9aafee4984 115 while (true) {
Rohit Grover 11:1d9aafee4984 116 ble.waitForEvent();
ktownsend 0:87a7fc231fae 117 }
ktownsend 0:87a7fc231fae 118 }