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
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
- Temperature Service : Gatt profile details from bluetooth.org
- Temperature Measurement : Gatt Characteristic details
- Temperature Type : Gatt Characteristic details
main.cpp@14:677ef88025b8, 2015-09-29 (annotated)
- Committer:
- rgrover1
- Date:
- Tue Sep 29 12:10:38 2015 +0000
- Revision:
- 14:677ef88025b8
- Parent:
- 13:30f6f65629b5
- Child:
- 15:57860d1cd14d
updating underlying libraries.
Who changed what in which revision?
User | Revision | Line number | New 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 | 13:30f6f65629b5 | 18 | #include "BLE.h" |
rgrover1 | 0:d01bde90471b | 19 | #include "HealthThermometerService.h" |
rgrover1 | 0:d01bde90471b | 20 | |
rgrover1 | 13:30f6f65629b5 | 21 | BLE 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 | 14:677ef88025b8 | 29 | void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params) |
rgrover1 | 0:d01bde90471b | 30 | { |
rgrover1 | 13:30f6f65629b5 | 31 | ble.gap().startAdvertising(); |
rgrover1 | 0:d01bde90471b | 32 | } |
rgrover1 | 0:d01bde90471b | 33 | |
rgrover1 | 10:9a7e23066427 | 34 | void periodicCallback(void) |
rgrover1 | 10:9a7e23066427 | 35 | { |
rgrover1 | 10:9a7e23066427 | 36 | led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */ |
rgrover1 | 10:9a7e23066427 | 37 | |
rgrover1 | 10:9a7e23066427 | 38 | /* Note that the periodicCallback() executes in interrupt context, so it is safer to do |
rgrover1 | 10:9a7e23066427 | 39 | * heavy-weight sensor polling from the main thread. */ |
rgrover1 | 10:9a7e23066427 | 40 | triggerSensorPolling = true; |
rgrover1 | 10:9a7e23066427 | 41 | } |
rgrover1 | 10:9a7e23066427 | 42 | |
rgrover1 | 0:d01bde90471b | 43 | int main(void) |
rgrover1 | 0:d01bde90471b | 44 | { |
rgrover1 | 4:83c07b0e93d6 | 45 | led1 = 1; |
rgrover1 | 10:9a7e23066427 | 46 | Ticker ticker; |
rgrover1 | 10:9a7e23066427 | 47 | ticker.attach(periodicCallback, 1); |
rgrover1 | 10:9a7e23066427 | 48 | |
rgrover1 | 0:d01bde90471b | 49 | ble.init(); |
rgrover1 | 13:30f6f65629b5 | 50 | ble.gap().onDisconnection(disconnectionCallback); |
rgrover1 | 0:d01bde90471b | 51 | |
rgrover1 | 10:9a7e23066427 | 52 | /* Setup primary service. */ |
rgrover1 | 10:9a7e23066427 | 53 | float currentTemperature = 39.6; |
rgrover1 | 10:9a7e23066427 | 54 | HealthThermometerService thermometerService(ble, currentTemperature, HealthThermometerService::LOCATION_EAR); |
rgrover1 | 10:9a7e23066427 | 55 | |
rgrover1 | 0:d01bde90471b | 56 | /* setup advertising */ |
rgrover1 | 13:30f6f65629b5 | 57 | ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); |
rgrover1 | 13:30f6f65629b5 | 58 | ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list)); |
rgrover1 | 13:30f6f65629b5 | 59 | ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::THERMOMETER_EAR); |
rgrover1 | 13:30f6f65629b5 | 60 | ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); |
rgrover1 | 13:30f6f65629b5 | 61 | ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED); |
rgrover1 | 13:30f6f65629b5 | 62 | ble.gap().setAdvertisingInterval(1000); /* 1000ms */ |
rgrover1 | 13:30f6f65629b5 | 63 | ble.gap().startAdvertising(); |
rgrover1 | 0:d01bde90471b | 64 | |
mbedAustin | 8:63addc0221e7 | 65 | while (true) { |
rgrover1 | 10:9a7e23066427 | 66 | if (triggerSensorPolling && ble.getGapState().connected) { |
rgrover1 | 10:9a7e23066427 | 67 | triggerSensorPolling = false; |
rgrover1 | 10:9a7e23066427 | 68 | |
rgrover1 | 10:9a7e23066427 | 69 | /* Do blocking calls or whatever is necessary for sensor polling. */ |
rgrover1 | 10:9a7e23066427 | 70 | // error = sensor.readData(); |
rgrover1 | 10:9a7e23066427 | 71 | // if (!error) { |
rgrover1 | 10:9a7e23066427 | 72 | // thermometerService.updateTemperature(c); |
rgrover1 | 10:9a7e23066427 | 73 | // } |
rgrover1 | 10:9a7e23066427 | 74 | |
rgrover1 | 10:9a7e23066427 | 75 | /* In our case, we simply update the dummy temperature measurement. */ |
rgrover1 | 10:9a7e23066427 | 76 | currentTemperature += 0.1; |
rgrover1 | 10:9a7e23066427 | 77 | thermometerService.updateTemperature(currentTemperature); |
rgrover1 | 10:9a7e23066427 | 78 | } else { |
rgrover1 | 10:9a7e23066427 | 79 | ble.waitForEvent(); |
rgrover1 | 10:9a7e23066427 | 80 | } |
rgrover1 | 0:d01bde90471b | 81 | } |
rgrover1 | 0:d01bde90471b | 82 | } |