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@20:58bff62d0f7a, 2014-06-11 (annotated)

Committer:
Rohit Grover
Date:
Wed Jun 11 14:52:56 2014 +0100
Revision:
20:58bff62d0f7a
Parent:
19:1713b11694ea
Child:
22:299658c5fa3c
remove un-necessary callbacks from the demo

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;
ktownsend 0:87a7fc231fae 21
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 9:5d693381e883 25 * it will have an impact on code-size and power
Rohit Grover 9:5d693381e883 26 * consumption. */
Rohit Grover 9:5d693381e883 27
Rohit Grover 9:5d693381e883 28 #if NEED_CONSOLE_OUTPUT
Rohit Grover 9:5d693381e883 29 Serial pc(USBTX, USBRX);
Rohit Grover 9:5d693381e883 30 #define DEBUG(...) { pc.printf(__VA_ARGS__); }
Rohit Grover 9:5d693381e883 31 #else
Rohit Grover 9:5d693381e883 32 #define DEBUG(...) /* nothing */
Rohit Grover 9:5d693381e883 33 #endif /* #if NEED_CONSOLE_OUTPUT */
ktownsend 0:87a7fc231fae 34
ktownsend 0:87a7fc231fae 35 /* Battery Level Service */
Rohit Grover 3:24e2b056d229 36 uint8_t batt = 72; /* Battery level */
Rohit Grover 18:8a2e313f49cb 37 GattCharacteristic battLevel (GattCharacteristic::UUID_BATTERY_LEVEL_CHAR, &batt, sizeof(batt), sizeof(batt),
Rohit Grover 18:8a2e313f49cb 38 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ);
Rohit Grover 19:1713b11694ea 39 GattCharacteristic *battChars[] = {
Rohit Grover 19:1713b11694ea 40 &battLevel,
Rohit Grover 19:1713b11694ea 41 };
Rohit Grover 19:1713b11694ea 42 GattService battService (GattService::UUID_BATTERY_SERVICE, battChars, sizeof(battChars) / sizeof(GattCharacteristic *));
ktownsend 0:87a7fc231fae 43
ktownsend 0:87a7fc231fae 44 /* Heart Rate Service */
ktownsend 0:87a7fc231fae 45 /* Service: https://developer.bluetooth.org/gatt/services/Pages/ServiceViewer.aspx?u=org.bluetooth.service.heart_rate.xml */
ktownsend 0:87a7fc231fae 46 /* HRM Char: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.heart_rate_measurement.xml */
ktownsend 0:87a7fc231fae 47 /* Location: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.body_sensor_location.xml */
Rohit Grover 18:8a2e313f49cb 48 static uint8_t hrmCounter = 100;
Rohit Grover 18:8a2e313f49cb 49 static uint8_t bpm[2] = {0x00, hrmCounter};
Rohit Grover 20:58bff62d0f7a 50 GattCharacteristic hrmRate(GattCharacteristic::UUID_HEART_RATE_MEASUREMENT_CHAR, bpm, sizeof(bpm), sizeof(bpm),
Rohit Grover 20:58bff62d0f7a 51 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY);
Rohit Grover 18:8a2e313f49cb 52 static const uint8_t location = 0x03; /* Finger */
Rohit Grover 18:8a2e313f49cb 53 GattCharacteristic hrmLocation(GattCharacteristic::UUID_BODY_SENSOR_LOCATION_CHAR,
Rohit Grover 18:8a2e313f49cb 54 (uint8_t *)&location, sizeof(location), sizeof(location),
Rohit Grover 18:8a2e313f49cb 55 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ);
Rohit Grover 19:1713b11694ea 56 GattCharacteristic *hrmChars[] = {
Rohit Grover 19:1713b11694ea 57 &hrmRate, &hrmLocation,
Rohit Grover 19:1713b11694ea 58 };
Rohit Grover 19:1713b11694ea 59 GattService hrmService(GattService::UUID_HEART_RATE_SERVICE, hrmChars, sizeof(hrmChars) / sizeof(GattCharacteristic *));
ktownsend 0:87a7fc231fae 60
ktownsend 0:87a7fc231fae 61 /* Device Information service */
Rohit Grover 8:49d8ee0aac11 62 static const uint8_t deviceName[] = {'m', 'b', 'e', 'd'};
Rohit Grover 18:8a2e313f49cb 63 GattCharacteristic deviceManufacturer (GattCharacteristic::UUID_MANUFACTURER_NAME_STRING_CHAR,
Rohit Grover 18:8a2e313f49cb 64 (uint8_t *)deviceName, sizeof(deviceName), sizeof(deviceName),
Rohit Grover 18:8a2e313f49cb 65 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ);
Rohit Grover 19:1713b11694ea 66 GattCharacteristic *devInfoChars[] = {
Rohit Grover 19:1713b11694ea 67 &deviceManufacturer,
Rohit Grover 19:1713b11694ea 68 };
Rohit Grover 19:1713b11694ea 69 GattService deviceInformationService (GattService::UUID_DEVICE_INFORMATION_SERVICE,
Rohit Grover 19:1713b11694ea 70 devInfoChars, sizeof(devInfoChars) / sizeof(GattCharacteristic *));
ktownsend 0:87a7fc231fae 71
rgrover1 7:daab8ba5139e 72 static const uint16_t uuid16_list[] = {
rgrover1 7:daab8ba5139e 73 GattService::UUID_BATTERY_SERVICE,
rgrover1 7:daab8ba5139e 74 GattService::UUID_DEVICE_INFORMATION_SERVICE,
rgrover1 7:daab8ba5139e 75 GattService::UUID_HEART_RATE_SERVICE
rgrover1 7:daab8ba5139e 76 };
ktownsend 0:87a7fc231fae 77
rgrover1 7:daab8ba5139e 78 void disconnectionCallback(void)
ktownsend 0:87a7fc231fae 79 {
Rohit Grover 9:5d693381e883 80 DEBUG("Disconnected!\n\r");
Rohit Grover 9:5d693381e883 81 DEBUG("Restarting the advertising process\n\r");
rgrover1 7:daab8ba5139e 82 ble.startAdvertising();
rgrover1 7:daab8ba5139e 83 }
Rohit Grover 3:24e2b056d229 84
Rohit Grover 13:3ca2045597e7 85 /**
Rohit Grover 13:3ca2045597e7 86 * Runs once a second in interrupt context triggered by the 'ticker'; updates
Rohit Grover 13:3ca2045597e7 87 * battery level and hrmCounter if there is a connection.
Rohit Grover 13:3ca2045597e7 88 */
Rohit Grover 11:1d9aafee4984 89 void periodicCallback(void)
Rohit Grover 11:1d9aafee4984 90 {
Rohit Grover 11:1d9aafee4984 91 led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */
Rohit Grover 11:1d9aafee4984 92
Rohit Grover 11:1d9aafee4984 93 if (ble.getGapState().connected) {
Rohit Grover 11:1d9aafee4984 94 /* Update battery level */
Rohit Grover 11:1d9aafee4984 95 batt++;
Rohit Grover 11:1d9aafee4984 96 if (batt > 100) {
Rohit Grover 11:1d9aafee4984 97 batt = 72;
Rohit Grover 11:1d9aafee4984 98 }
Rohit Grover 11:1d9aafee4984 99 ble.updateCharacteristicValue(battLevel.getHandle(), (uint8_t *)&batt, sizeof(batt));
Rohit Grover 11:1d9aafee4984 100
Rohit Grover 11:1d9aafee4984 101 /* Update the HRM measurement */
Rohit Grover 11:1d9aafee4984 102 /* First byte = 8-bit values, no extra info, Second byte = uint8_t HRM value */
Rohit Grover 11:1d9aafee4984 103 /* See --> https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.heart_rate_measurement.xml */
Rohit Grover 11:1d9aafee4984 104 hrmCounter++;
Rohit Grover 11:1d9aafee4984 105 if (hrmCounter == 175) {
Rohit Grover 11:1d9aafee4984 106 hrmCounter = 100;
Rohit Grover 11:1d9aafee4984 107 }
Rohit Grover 18:8a2e313f49cb 108 bpm[1] = hrmCounter;
Rohit Grover 11:1d9aafee4984 109 ble.updateCharacteristicValue(hrmRate.getHandle(), bpm, sizeof(bpm));
Rohit Grover 11:1d9aafee4984 110 }
Rohit Grover 11:1d9aafee4984 111 }
Rohit Grover 11:1d9aafee4984 112
ktownsend 0:87a7fc231fae 113 int main(void)
ktownsend 0:87a7fc231fae 114 {
Rohit Grover 3:24e2b056d229 115 led1 = 1;
Rohit Grover 11:1d9aafee4984 116 Ticker ticker;
Rohit Grover 11:1d9aafee4984 117 ticker.attach(periodicCallback, 1);
ktownsend 0:87a7fc231fae 118
Rohit Grover 15:7ba28817e31e 119 DEBUG("Initialising the nRF51822\n\r");
Rohit Grover 15:7ba28817e31e 120 ble.init();
Rohit Grover 15:7ba28817e31e 121
ktownsend 0:87a7fc231fae 122 /* Setup the local GAP/GATT event handlers */
rgrover1 7:daab8ba5139e 123 ble.onDisconnection(disconnectionCallback);
ktownsend 0:87a7fc231fae 124
Rohit Grover 15:7ba28817e31e 125 /* setup advertising */
rgrover1 7:daab8ba5139e 126 ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED);
rgrover1 7:daab8ba5139e 127 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
rgrover1 7:daab8ba5139e 128 ble.accumulateAdvertisingPayload(GapAdvertisingData::HEART_RATE_SENSOR_HEART_RATE_BELT);
rgrover1 7:daab8ba5139e 129 ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
rgrover1 7:daab8ba5139e 130 ble.setAdvertisingInterval(160); /* 100ms; in multiples of 0.625ms. */
rgrover1 7:daab8ba5139e 131 ble.startAdvertising();
Rohit Grover 3:24e2b056d229 132
Rohit Grover 11:1d9aafee4984 133 ble.addService(deviceInformationService);
Rohit Grover 11:1d9aafee4984 134 ble.addService(battService);
Rohit Grover 11:1d9aafee4984 135 ble.addService(hrmService);
ktownsend 0:87a7fc231fae 136
Rohit Grover 11:1d9aafee4984 137 while (true) {
Rohit Grover 11:1d9aafee4984 138 ble.waitForEvent();
ktownsend 0:87a7fc231fae 139 }
ktownsend 0:87a7fc231fae 140 }