Bluetooth Low Energy / Mbed 2 deprecated BLE_LED

template for an actuator service

Dependencies:   BLE_API mbed nRF51822

Demo for an Actuator Service

To help you create your own BLE services, we've created a series of service templates. The *actuator service template* demonstrates the use of a read-write characteristic to control a LED through a phone app.

The template covers:

1. Setting up advertising and connection states.

2. Assigning UUIDs to the service and its characteristic.

3. Creating an input characteristic: read-write, boolean. This characteristic offers control of the LED.

4. Constructing a service class and adding it to the BLE stack.

LEDService.h

Committer:
rgrover1
Date:
2015-02-18
Revision:
0:ed5c53845de7

File content as of revision 0:ed5c53845de7:

/* 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_LED_SERVICE_H__
#define __BLE_LED_SERVICE_H__

class LEDService {
public:
    const static uint16_t LED_SERVICE_UUID              = 0xA000;
    const static uint16_t LED_STATE_CHARACTERISTIC_UUID = 0xA001;

    LEDService(BLEDevice &_ble, bool initialValueForLEDCharacteristic) :
        ble(_ble), ledState(LED_STATE_CHARACTERISTIC_UUID, &initialValueForLEDCharacteristic)
    {
        GattCharacteristic *charTable[] = {&ledState};
        GattService         ledService(LED_SERVICE_UUID, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
        ble.addService(ledService);
    }

    GattAttribute::Handle_t getValueHandle() const {
        return ledState.getValueHandle();
    }

private:
    BLEDevice                         &ble;
    ReadWriteGattCharacteristic<bool>  ledState;
};

#endif /* #ifndef __BLE_LED_SERVICE_H__ */