64 lines
2.1 KiB
C++
64 lines
2.1 KiB
C++
// I2Cdev library collection - HTU21D I2C device class header file
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// Based on MEAS HTU21D HPC199_2 HTU321(F) datasheet, October 2013
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// 2016-03-24 by https://github.com/eadf
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// Updates should (hopefully) always be available at https://github.com/jrowberg/i2cdevlib
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//
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// Changelog:
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// 2016-03-24 - initial release
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/* ============================================
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I2Cdev device library code is placed under the MIT license
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Copyright (c) 2016 Eadf, Jeff Rowberg
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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===============================================
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*/
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#ifndef _HTU21D_H_
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#define _HTU21D_H_
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#include "I2Cdev.h"
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#define HTU21D_DEFAULT_ADDRESS 0x40
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#define HTU21D_RA_TEMPERATURE 0xE3
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#define HTU21D_RA_HUMIDITY 0xE5
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#define HTU21D_RESET 0xFE
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#define HTU21D_WRITE_USER_REGISTER 0xE6
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#define HTU21D_READ_USER_REGISTER 0xE7
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class HTU21D {
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public:
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HTU21D();
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void initialize();
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bool testConnection();
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float getTemperature();
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float getHumidity();
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void reset();
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private:
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uint8_t devAddr;
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uint8_t buffer[2];
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};
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#endif /* _HTU21D_H_ */
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