/* * Author: Yevgeniy Kiveisha * Copyright (c) 2014 Intel Corporation. * * Credits to Seeed Studeo. * * 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 THE AUTHORS OR COPYRIGHT HOLDERS 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. */ #pragma once #include #include #define ADDR 0x40 // device address #define REG_STATUS 0x00 #define REG_DATA_H 0x01 #define REG_DATA_L 0x02 #define REG_CONFIG 0x03 #define REG_ID 0x11 #define STATUS_RDY_MASK 0x01 #define CMD_MEASURE_HUMI 0x01 #define CMD_MEASURE_TEMP 0x11 #define TH02_WR_REG_MODE 0xC0 #define TH02_RD_REG_MODE 0x80 #define HIGH 1 #define LOW 0 namespace upm { /** * @brief th02 temperature & humidity sensor library * @defgroup th02 libupm-th02 */ /** * @brief C++ API for TH02 chip (Temperature and Humidity Sensor Pro) * * This file defines the TH02 C++ interface for libth02 * * @ingroup th02 * @snippet th02.cxx Interesting */ class TH02 { public: /** * Instanciates a TH02 object */ TH02 (); /** * TH02 object destructor, basicaly it close i2c connection. */ ~TH02 (); /** * Get the temperature value from sensor. */ float getTemperature (); /** * Get the humidity value from sensor. */ float getHumidity (); /** * Get the sensor's status. */ bool getStatus (); /** * Return name of the component */ std::string name() { return m_name; } private: std::string m_name; mraa_i2c_context m_i2Ctx; uint16_t i2cReadReg_N (int reg, unsigned int len, uint8_t * buffer); mraa_result_t i2cWriteReg_N (uint8_t reg, unsigned int len, uint8_t * buffer); mraa_result_t i2cWriteReg (uint8_t reg, uint8_t data); }; }