mirror of
https://github.com/oliverschmidt/contiki.git
synced 2024-12-27 10:32:54 +00:00
51 lines
2.0 KiB
C
51 lines
2.0 KiB
C
/*
|
|
* Copyright (c) 2007, Swedish Institute of Computer Science
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the Institute nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
*/
|
|
|
|
#ifndef SHT11_H
|
|
#define SHT11_H
|
|
|
|
void sht11_init(void);
|
|
void sht11_off(void);
|
|
|
|
unsigned int sht11_temp(void);
|
|
unsigned int sht11_humidity(void);
|
|
unsigned int sht11_sreg(void);
|
|
int sht11_set_sreg(unsigned);
|
|
|
|
/*
|
|
* Relative Humidity in percent (h in 12 bits resolution)
|
|
* RH = -4 + 0.0405*h - 2.8e-6*(h*h)
|
|
*
|
|
* Temperature in Celsius (t in 14 bits resolution at 3 Volts)
|
|
* T = -39.60 + 0.01*t
|
|
*/
|
|
|
|
#endif /* SHT11_H */
|