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@26:e6ad33b227c6, 2014-07-03 (annotated)

Committer:
Rohit Grover
Date:
Thu Jul 03 11:44:59 2014 +0100
Revision:
26:e6ad33b227c6
Parent:
22:299658c5fa3c
Child:
27:97adf2b76b9c
add deviceInformationService to the basic HRM 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;
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 26:e6ad33b227c6 33 /* Device Information service */
Rohit Grover 26:e6ad33b227c6 34 const char deviceName[] = { 'm', 'b', 'e', 'd' };
Rohit Grover 26:e6ad33b227c6 35 GattCharacteristic deviceManufacturer(GattCharacteristic::UUID_MANUFACTURER_NAME_STRING_CHAR, (uint8_t *)deviceName, sizeof(deviceName), sizeof(deviceName),
Rohit Grover 26:e6ad33b227c6 36 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ);
Rohit Grover 26:e6ad33b227c6 37 GattCharacteristic *deviceInformationChars[] = {&deviceManufacturer};
Rohit Grover 26:e6ad33b227c6 38 GattService deviceInformationService(GattService::UUID_DEVICE_INFORMATION_SERVICE, deviceInformationChars,
Rohit Grover 26:e6ad33b227c6 39 sizeof(deviceInformationChars) / sizeof(GattCharacteristic *));
Rohit Grover 26:e6ad33b227c6 40
ktownsend 0:87a7fc231fae 41 /* Heart Rate Service */
ktownsend 0:87a7fc231fae 42 /* Service: https://developer.bluetooth.org/gatt/services/Pages/ServiceViewer.aspx?u=org.bluetooth.service.heart_rate.xml */
ktownsend 0:87a7fc231fae 43 /* HRM Char: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.heart_rate_measurement.xml */
ktownsend 0:87a7fc231fae 44 /* Location: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.body_sensor_location.xml */
Rohit Grover 18:8a2e313f49cb 45 static uint8_t hrmCounter = 100;
Rohit Grover 18:8a2e313f49cb 46 static uint8_t bpm[2] = {0x00, hrmCounter};
Rohit Grover 20:58bff62d0f7a 47 GattCharacteristic hrmRate(GattCharacteristic::UUID_HEART_RATE_MEASUREMENT_CHAR, bpm, sizeof(bpm), sizeof(bpm),
Rohit Grover 20:58bff62d0f7a 48 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY);
Rohit Grover 18:8a2e313f49cb 49 static const uint8_t location = 0x03; /* Finger */
Rohit Grover 18:8a2e313f49cb 50 GattCharacteristic hrmLocation(GattCharacteristic::UUID_BODY_SENSOR_LOCATION_CHAR,
Rohit Grover 18:8a2e313f49cb 51 (uint8_t *)&location, sizeof(location), sizeof(location),
Rohit Grover 18:8a2e313f49cb 52 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ);
Rohit Grover 22:299658c5fa3c 53 GattCharacteristic *hrmChars[] = {&hrmRate, &hrmLocation, };
Rohit Grover 19:1713b11694ea 54 GattService hrmService(GattService::UUID_HEART_RATE_SERVICE, hrmChars, sizeof(hrmChars) / sizeof(GattCharacteristic *));
ktownsend 0:87a7fc231fae 55
rgrover1 7:daab8ba5139e 56 void disconnectionCallback(void)
ktownsend 0:87a7fc231fae 57 {
Rohit Grover 9:5d693381e883 58 DEBUG("Disconnected!\n\r");
Rohit Grover 9:5d693381e883 59 DEBUG("Restarting the advertising process\n\r");
rgrover1 7:daab8ba5139e 60 ble.startAdvertising();
rgrover1 7:daab8ba5139e 61 }
Rohit Grover 3:24e2b056d229 62
Rohit Grover 13:3ca2045597e7 63 /**
Rohit Grover 22:299658c5fa3c 64 * Triggered periodically by the 'ticker' interrupt; updates hrmCounter.
Rohit Grover 13:3ca2045597e7 65 */
Rohit Grover 11:1d9aafee4984 66 void periodicCallback(void)
Rohit Grover 11:1d9aafee4984 67 {
Rohit Grover 11:1d9aafee4984 68 led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */
Rohit Grover 11:1d9aafee4984 69
Rohit Grover 11:1d9aafee4984 70 if (ble.getGapState().connected) {
Rohit Grover 11:1d9aafee4984 71 /* Update the HRM measurement */
Rohit Grover 11:1d9aafee4984 72 /* First byte = 8-bit values, no extra info, Second byte = uint8_t HRM value */
Rohit Grover 11:1d9aafee4984 73 /* See --> https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.heart_rate_measurement.xml */
Rohit Grover 11:1d9aafee4984 74 hrmCounter++;
Rohit Grover 11:1d9aafee4984 75 if (hrmCounter == 175) {
Rohit Grover 11:1d9aafee4984 76 hrmCounter = 100;
Rohit Grover 11:1d9aafee4984 77 }
Rohit Grover 18:8a2e313f49cb 78 bpm[1] = hrmCounter;
Rohit Grover 11:1d9aafee4984 79 ble.updateCharacteristicValue(hrmRate.getHandle(), bpm, sizeof(bpm));
Rohit Grover 11:1d9aafee4984 80 }
Rohit Grover 11:1d9aafee4984 81 }
Rohit Grover 11:1d9aafee4984 82
ktownsend 0:87a7fc231fae 83 int main(void)
ktownsend 0:87a7fc231fae 84 {
Rohit Grover 3:24e2b056d229 85 led1 = 1;
Rohit Grover 11:1d9aafee4984 86 Ticker ticker;
Rohit Grover 11:1d9aafee4984 87 ticker.attach(periodicCallback, 1);
ktownsend 0:87a7fc231fae 88
Rohit Grover 15:7ba28817e31e 89 DEBUG("Initialising the nRF51822\n\r");
Rohit Grover 15:7ba28817e31e 90 ble.init();
rgrover1 7:daab8ba5139e 91 ble.onDisconnection(disconnectionCallback);
ktownsend 0:87a7fc231fae 92
Rohit Grover 15:7ba28817e31e 93 /* setup advertising */
rgrover1 7:daab8ba5139e 94 ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED);
rgrover1 7:daab8ba5139e 95 ble.accumulateAdvertisingPayload(GapAdvertisingData::HEART_RATE_SENSOR_HEART_RATE_BELT);
rgrover1 7:daab8ba5139e 96 ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
rgrover1 7:daab8ba5139e 97 ble.setAdvertisingInterval(160); /* 100ms; in multiples of 0.625ms. */
rgrover1 7:daab8ba5139e 98 ble.startAdvertising();
Rohit Grover 3:24e2b056d229 99
Rohit Grover 26:e6ad33b227c6 100 ble.addService(deviceInformationService);
Rohit Grover 11:1d9aafee4984 101 ble.addService(hrmService);
ktownsend 0:87a7fc231fae 102
Rohit Grover 11:1d9aafee4984 103 while (true) {
Rohit Grover 11:1d9aafee4984 104 ble.waitForEvent();
ktownsend 0:87a7fc231fae 105 }
ktownsend 0:87a7fc231fae 106 }