HCSR04 Ultrasonic sensor exposed over BLE
Dependencies: BLE_API HCSR04 mbed nRF51822
Diff: UltrasonicService.h
- Revision:
- 0:470a1164da56
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/UltrasonicService.h Mon May 09 10:26:40 2016 +0000 @@ -0,0 +1,43 @@ +/* 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_ULTRA_SERVICE_H__ +#define __BLE_ULTRA_SERVICE_H__ + +class UltrasonicService { +public: + const static uint16_t SERVICE_UUID = 0xA998; + const static uint16_t STATE_CHARACTERISTIC_UUID = 0xA999; + + UltrasonicService(BLE &_ble) : + ble(_ble), state(STATE_CHARACTERISTIC_UUID, 0, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY) + { + GattCharacteristic *charTable[] = {&state}; + GattService service(UltrasonicService::SERVICE_UUID, charTable, sizeof(charTable) / sizeof(GattCharacteristic *)); + ble.gattServer().addService(service); + } + + void updateState(uint32_t newState) { + ble.gattServer().write(state.getValueHandle(), (uint8_t *)&newState, sizeof(uint32_t)); + } + +private: + BLE &ble; + ReadOnlyGattCharacteristic<uint32_t> state; +}; + +#endif /* #ifndef __BLE_ULTRA_SERVICE_H__ */ + \ No newline at end of file