Bluetooth Low Energy / Mbed 2 deprecated BLE_Thermometer Featured

BLE demo for the Health-Thermometer service.

Dependencies:   BLE_API mbed nRF51822 X_NUCLEO_IDB0XA1

This example demonstrates how to use the Health Thermometer Service. The Health Thermometer service reports two pieces of information, Temperature and Sensor Location.

API

Import library
BLE_API - HealthThermometerService Class Reference

Public Types

enum SensorLocation_t {
LOCATION_ARMPIT = 1, LOCATION_BODY , LOCATION_EAR , LOCATION_FINGER ,
LOCATION_GI_TRACT , LOCATION_MOUTH , LOCATION_RECTUM , LOCATION_TOE ,
LOCATION_EAR_DRUM
}

Public Member Functions

HealthThermometerService ( BLE &_ble, float initialTemp, uint8_t _location)
Add the Health Thermometer Service to an existing BLE object, initialize with temperature and location.
void updateTemperature (float temperature)
Update the temperature being broadcast.
void updateLocation ( SensorLocation_t loc)
Update the location.

Technical Details

Further Technical Details can be found at the following links

main.cpp@8:63addc0221e7, 2014-12-09 (annotated)

Committer:
mbedAustin
Date:
Tue Dec 09 22:23:42 2014 +0000
Revision:
8:63addc0221e7
Parent:
4:83c07b0e93d6
Child:
10:9a7e23066427
Simplified the Example, removed the external Temperature sensor

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rgrover1 0:d01bde90471b 1 /* mbed Microcontroller Library
rgrover1 0:d01bde90471b 2 * Copyright (c) 2006-2013 ARM Limited
rgrover1 0:d01bde90471b 3 *
rgrover1 0:d01bde90471b 4 * Licensed under the Apache License, Version 2.0 (the "License");
rgrover1 0:d01bde90471b 5 * you may not use this file except in compliance with the License.
rgrover1 0:d01bde90471b 6 * You may obtain a copy of the License at
rgrover1 0:d01bde90471b 7 *
rgrover1 0:d01bde90471b 8 * http://www.apache.org/licenses/LICENSE-2.0
rgrover1 0:d01bde90471b 9 *
rgrover1 0:d01bde90471b 10 * Unless required by applicable law or agreed to in writing, software
rgrover1 0:d01bde90471b 11 * distributed under the License is distributed on an "AS IS" BASIS,
rgrover1 0:d01bde90471b 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rgrover1 0:d01bde90471b 13 * See the License for the specific language governing permissions and
rgrover1 0:d01bde90471b 14 * limitations under the License.
rgrover1 0:d01bde90471b 15 */
rgrover1 0:d01bde90471b 16
rgrover1 0:d01bde90471b 17 #include "mbed.h"
rgrover1 0:d01bde90471b 18 #include "BLEDevice.h"
rgrover1 0:d01bde90471b 19 #include "HealthThermometerService.h"
rgrover1 0:d01bde90471b 20
rgrover1 0:d01bde90471b 21 BLEDevice ble;
rgrover1 4:83c07b0e93d6 22 DigitalOut led1(LED1);
rgrover1 0:d01bde90471b 23
rgrover1 0:d01bde90471b 24 const static char DEVICE_NAME[] = "Therm";
rgrover1 0:d01bde90471b 25 static const uint16_t uuid16_list[] = {GattService::UUID_HEALTH_THERMOMETER_SERVICE};
rgrover1 0:d01bde90471b 26 static volatile bool triggerSensorPolling = false;
rgrover1 0:d01bde90471b 27
mbedAustin 8:63addc0221e7 28 /* Restart Advertising on disconnection*/
rgrover1 1:2deb859ed1a3 29 void disconnectionCallback(Gap::Handle_t handle, Gap::DisconnectionReason_t reason)
rgrover1 0:d01bde90471b 30 {
rgrover1 0:d01bde90471b 31 ble.startAdvertising();
rgrover1 0:d01bde90471b 32 }
rgrover1 0:d01bde90471b 33
rgrover1 0:d01bde90471b 34 int main(void)
rgrover1 0:d01bde90471b 35 {
rgrover1 4:83c07b0e93d6 36 led1 = 1;
mbedAustin 8:63addc0221e7 37
mbedAustin 8:63addc0221e7 38 /* Initialize BLE baselayer*/
rgrover1 0:d01bde90471b 39 ble.init();
rgrover1 0:d01bde90471b 40 ble.onDisconnection(disconnectionCallback);
rgrover1 0:d01bde90471b 41
rgrover1 0:d01bde90471b 42 /* setup advertising */
rgrover1 0:d01bde90471b 43 ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
rgrover1 0:d01bde90471b 44 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
rgrover1 0:d01bde90471b 45 ble.accumulateAdvertisingPayload(GapAdvertisingData::THERMOMETER_EAR);
rgrover1 0:d01bde90471b 46 ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
rgrover1 0:d01bde90471b 47 ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
rgrover1 0:d01bde90471b 48 ble.setAdvertisingInterval(1600); /* 1000ms; in multiples of 0.625ms. */
rgrover1 0:d01bde90471b 49
mbedAustin 8:63addc0221e7 50 /* setup Thermometer*/
rgrover1 0:d01bde90471b 51 float initialTemperature = 39.6;
rgrover1 0:d01bde90471b 52 HealthThermometerService thermometerService(ble, initialTemperature, HealthThermometerService::LOCATION_EAR);
rgrover1 0:d01bde90471b 53
mbedAustin 8:63addc0221e7 54 /* Start Advertising*/
mbedAustin 8:63addc0221e7 55 ble.startAdvertising();
rgrover1 0:d01bde90471b 56
mbedAustin 8:63addc0221e7 57 /* incriment temperature by 1 degree every second*/
mbedAustin 8:63addc0221e7 58 while (true) {
mbedAustin 8:63addc0221e7 59 thermometerService.updateTemperature((initialTemperature++));
mbedAustin 8:63addc0221e7 60 wait(2);
mbedAustin 8:63addc0221e7 61 led1 = !led1; /* Flash LED*/
rgrover1 0:d01bde90471b 62 }
rgrover1 0:d01bde90471b 63 }