BTLE demo for MAXWSNENV.
Dependencies: BLE_API BMP180 Si7020 mbed MaximBLE
Characteristic.h
- Committer:
- kgills
- Date:
- 2015-07-10
- Revision:
- 0:f71931ae3db1
File content as of revision 0:f71931ae3db1:
/******************************************************************************* * Copyright (C) 2015 Maxim Integrated Products, Inc., All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Except as contained in this notice, the name of Maxim Integrated * Products, Inc. shall not be used except as stated in the Maxim Integrated * Products, Inc. Branding Policy. * * The mere transfer of this software does not imply any licenses * of trade secrets, proprietary technology, copyrights, patents, * trademarks, maskwork rights, or any other form of intellectual * property whatsoever. Maxim Integrated Products, Inc. retains all * ownership rights. ******************************************************************************* */ #ifndef __BLE_CHARACTERISTIC_H__ #define __BLE_CHARACTERISTIC_H__ #include "mbed.h" #include "BLE.h" /** * @class Characteristic * @brief Abstract characteristic class. * @details Implement sub class derived from this for custom characteristic. */ class Characteristic { public: static const unsigned TIMESTAMP_BYTES = 7; virtual GattCharacteristic *getChar(void) = 0; virtual uint8_t getNumBytes(void) = 0; virtual uint8_t *getBytes(void) = 0; protected: // Convert time_t to the timestamp format static void date_time(time_t time, uint8_t *buf) { // Convert time_t to Year, Month, Day, Hour, Minute, Second struct tm ts = *localtime(&time); buf[1] = ((ts.tm_year+1900) & 0xFF00) >> 8; buf[0] = (ts.tm_year+1900) & 0xFF; buf[2] = (ts.tm_mon + 1) & 0xFF; buf[3] = ts.tm_mday & 0xFF; buf[4] = ts.tm_hour & 0xFF; buf[5] = ts.tm_min & 0xFF; buf[6] = ts.tm_sec & 0xFF; } // Convert floating point numbers to IEEE-11073 32-bit float static uint32_t float_bytes(float _float, uint8_t exp) { // Calculate how much to adjust mantissa uint8_t exponent = 0xFF - exp + 1; while(exp > 0) { _float *=10; exp--; } uint32_t mantissa = (uint32_t)(_float); return (((uint32_t)exponent) << 24) | mantissa; } }; #endif /* #ifndef __BLE_CHARACTERISTIC_H__*/