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Dependencies: BLE_API mbed nRF51822
Fork of BLE_EvothingsExample_GATT by
Revision 12:6d1f77d0cb37, committed 2015-03-17
- Comitter:
- mbedAustin
- Date:
- Tue Mar 17 20:38:40 2015 +0000
- Parent:
- 11:b59226338001
- Child:
- 13:62b1d32745ac
- Commit message:
- switched out characteristics with macros initializations and removed customservice.h;
Changed in this revision
| CustomService.h | Show diff for this revision Revisions of this file |
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
--- a/CustomService.h Wed Mar 11 14:23:25 2015 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,202 +0,0 @@
-/* mbed Microcontroller Library
- * Copyright (c) 2006-2013 ARM Limited
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef __BLE_HEART_RATE_SERVICE_H__
-#define __BLE_HEART_RATE_SERVICE_H__
-
-#include "BLEDevice.h"
-
-/**
-* @class HeartRateService
-* @brief BLE Service for HeartRate. This BLE Service contains the location of the sensor, the heartrate in beats per minute. <br>
-* Service: https://developer.bluetooth.org/gatt/services/Pages/ServiceViewer.aspx?u=org.bluetooth.service.heart_rate.xml <br>
-* HRM Char: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.heart_rate_measurement.xml <br>
-* Location: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.body_sensor_location.xml
-*/
-class HeartRateService {
-public:
- /**
- * @enum SensorLocation
- * @brief Location of HeartRate sensor on body.
- */
- enum {
- LOCATION_OTHER = 0, /*!< Other Location */
- LOCATION_CHEST, /*!< Chest */
- LOCATION_WRIST, /*!< Wrist */
- LOCATION_FINGER, /*!< Finger */
- LOCATION_HAND, /*!< Hand */
- LOCATION_EAR_LOBE, /*!< Earlobe */
- LOCATION_FOOT, /*!< Foot */
- };
-
-public:
- /**
- * @brief Constructor with 8bit HRM Counter value.
- *
- * @param[ref] _ble
- * Reference to the underlying BLEDevice.
- * @param[in] hrmCounter (8-bit)
- * initial value for the hrm counter.
- * @param[in] location
- * Sensor's location.
- */
- HeartRateService(BLEDevice &_ble, uint8_t hrmCounter, uint8_t location) :
- ble(_ble),
- valueBytes(hrmCounter),
- hrmRate(GattCharacteristic::UUID_HEART_RATE_MEASUREMENT_CHAR, valueBytes.getPointer(),
- valueBytes.getNumValueBytes(), HeartRateValueBytes::MAX_VALUE_BYTES,
- GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY),
- hrmLocation(GattCharacteristic::UUID_BODY_SENSOR_LOCATION_CHAR, &location),
- controlPoint(GattCharacteristic::UUID_HEART_RATE_CONTROL_POINT_CHAR, &controlPointValue) {
- setupService();
- }
-
- /**
- * @brief Constructor with a 16-bit HRM Counter value.
- *
- * @param[in] _ble
- * Reference to the underlying BLEDevice.
- * @param[in] hrmCounter (8-bit)
- * initial value for the hrm counter.
- * @param[in] location
- * Sensor's location.
- */
- HeartRateService(BLEDevice &_ble, uint16_t hrmCounter, uint8_t location) :
- ble(_ble),
- valueBytes(hrmCounter),
- hrmRate(GattCharacteristic::UUID_HEART_RATE_MEASUREMENT_CHAR, valueBytes.getPointer(),
- valueBytes.getNumValueBytes(), HeartRateValueBytes::MAX_VALUE_BYTES,
- GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY),
- hrmLocation(GattCharacteristic::UUID_BODY_SENSOR_LOCATION_CHAR, &location),
- controlPoint(GattCharacteristic::UUID_HEART_RATE_CONTROL_POINT_CHAR, &controlPointValue) {
- setupService();
- }
-
- /**
- * @brief Set a new 8-bit value for heart rate.
- *
- * @param[in] hrmCounter
- * HeartRate in bpm.
- */
- void updateHeartRate(uint8_t hrmCounter) {
- valueBytes.updateHeartRate(hrmCounter);
- ble.updateCharacteristicValue(hrmRate.getValueAttribute().getHandle(), valueBytes.getPointer(), valueBytes.getNumValueBytes());
- }
-
- /**
- * Set a new 16-bit value for heart rate.
- *
- * @param[in] hrmCounter
- * HeartRate in bpm.
- */
- void updateHeartRate(uint16_t hrmCounter) {
- valueBytes.updateHeartRate(hrmCounter);
- ble.updateCharacteristicValue(hrmRate.getValueAttribute().getHandle(), valueBytes.getPointer(), valueBytes.getNumValueBytes());
- }
-
- /**
- * This callback allows the HeartRateService to receive updates to the
- * controlPoint Characteristic.
- *
- * @param[in] params
- * Information about the characterisitc being updated.
- */
- virtual void onDataWritten(const GattCharacteristicWriteCBParams *params) {
- if (params->charHandle == controlPoint.getValueAttribute().getHandle()) {
- /* Do something here if the new value is 1; else you can override this method by
- * extending this class.
- * @NOTE: if you are extending this class, be sure to also call
- * ble.onDataWritten(this, &ExtendedHRService::onDataWritten); in
- * your constructor.
- */
- }
- }
-
-private:
- void setupService(void) {
- static bool serviceAdded = false; /* We should only ever need to add the heart rate service once. */
- if (serviceAdded) {
- return;
- }
-
- GattCharacteristic *charTable[] = {&hrmRate, &hrmLocation, &controlPoint};
- GattService hrmService(GattService::UUID_HEART_RATE_SERVICE, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
-
- ble.addService(hrmService);
- serviceAdded = true;
-
- ble.onDataWritten(this, &HeartRateService::onDataWritten);
- }
-
-private:
- /* Private internal representation for the bytes used to work with the vaulue of the heart-rate characteristic. */
- struct HeartRateValueBytes {
- static const unsigned MAX_VALUE_BYTES = 3; /* FLAGS + up to two bytes for heart-rate */
- static const unsigned FLAGS_BYTE_INDEX = 0;
-
- static const unsigned VALUE_FORMAT_BITNUM = 0;
- static const uint8_t VALUE_FORMAT_FLAG = (1 << VALUE_FORMAT_BITNUM);
-
- HeartRateValueBytes(uint8_t hrmCounter) : valueBytes() {
- updateHeartRate(hrmCounter);
- }
-
- HeartRateValueBytes(uint16_t hrmCounter) : valueBytes() {
- updateHeartRate(hrmCounter);
- }
-
- void updateHeartRate(uint8_t hrmCounter) {
- valueBytes[FLAGS_BYTE_INDEX] &= ~VALUE_FORMAT_FLAG;
- valueBytes[FLAGS_BYTE_INDEX + 1] = hrmCounter;
- }
-
- void updateHeartRate(uint16_t hrmCounter) {
- valueBytes[FLAGS_BYTE_INDEX] |= VALUE_FORMAT_FLAG;
- valueBytes[FLAGS_BYTE_INDEX + 1] = (uint8_t)(hrmCounter & 0xFF);
- valueBytes[FLAGS_BYTE_INDEX + 2] = (uint8_t)(hrmCounter >> 8);
- }
-
- uint8_t *getPointer(void) {
- return valueBytes;
- }
-
- const uint8_t *getPointer(void) const {
- return valueBytes;
- }
-
- unsigned getNumValueBytes(void) const {
- return 1 + ((valueBytes[FLAGS_BYTE_INDEX] & VALUE_FORMAT_FLAG) ? sizeof(uint16_t) : sizeof(uint8_t));
- }
-
-private:
- /* First byte = 8-bit values, no extra info, Second byte = uint8_t HRM value */
- /* See --> https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.heart_rate_measurement.xml */
- uint8_t valueBytes[MAX_VALUE_BYTES];
- };
-
-private:
- BLEDevice &ble;
-
- HeartRateValueBytes valueBytes;
- uint8_t controlPointValue;
-
- GattCharacteristic hrmRate;
- ReadOnlyGattCharacteristic<uint8_t> hrmLocation;
- WriteOnlyGattCharacteristic<uint8_t> controlPoint;
-};
-
-#endif /* #ifndef __BLE_HEART_RATE_SERVICE_H__*/
-
--- a/main.cpp Wed Mar 11 14:23:25 2015 +0000
+++ b/main.cpp Tue Mar 17 20:38:40 2015 +0000
@@ -1,11 +1,10 @@
#include "mbed.h"
#include "BLEDevice.h"
-#include "CustomService.h"
BLEDevice ble;
DigitalOut led(LED1);
uint16_t customServiceUUID = 0xA000;
-uint16_t reachCharUUID = 0xA001;
+uint16_t readCharUUID = 0xA001;
uint16_t writeCharUUID = 0xA002;
const static char DEVICE_NAME[] = "ChangeMe!!"; // change this
@@ -13,12 +12,10 @@
// Set Up custom Characteristics
static uint8_t readValue[10] = {0};
-GattCharacteristic readChar(reachCharUUID, readValue, sizeof(readValue), sizeof(readValue),
- GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY);
+ReadOnlyArrayGattCharacteristic<uint8_t, sizeof(readValue)> readChar(readCharUUID, readValue);
static uint8_t writeValue[10] = {0};
-GattCharacteristic writeChar(writeCharUUID, writeValue, sizeof(writeValue), sizeof(writeValue),
- GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY);
+WriteOnlyArrayGattCharacteristic<uint8_t, sizeof(writeValue)> writeChar(writeCharUUID, writeValue);
// Set up custom service
GattCharacteristic *characteristics[] = {&readChar, &writeChar};
