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hdc1000.h
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1/*
2 * Copyright (C) 2014 PHYTEC Messtechnik GmbH
3 * 2017 Freie Universität Berlin
4 *
5 * This file is subject to the terms and conditions of the GNU Lesser
6 * General Public License v2.1. See the file LICENSE in the top level
7 * directory for more details.
8 */
9
41#ifndef HDC1000_H
42#define HDC1000_H
43
44#include <stdint.h>
45
46#include "periph/i2c.h"
47#include "hdc1000_regs.h"
48
49#ifdef __cplusplus
50extern "C"
51{
52#endif
53
65#ifndef CONFIG_HDC1000_I2C_ADDRESS
66#define CONFIG_HDC1000_I2C_ADDRESS (0x43)
67#endif
68
76#ifndef CONFIG_HDC1000_CONVERSION_TIME
77#define CONFIG_HDC1000_CONVERSION_TIME (26000)
78#endif
84enum {
88 HDC1000_BUSERR = -3
89};
90
94typedef enum {
95 HDC1000_11BIT = (HDC1000_TRES11 | HDC1000_HRES11),
96 HDC1000_14BIT = (HDC1000_TRES14 | HDC1000_HRES14)
98
108
112typedef struct {
114} hdc1000_t;
115
126int hdc1000_init(hdc1000_t *dev, const hdc1000_params_t *params);
127
141
152int hdc1000_get_results(const hdc1000_t *dev, int16_t *temp, int16_t *hum);
153
167int hdc1000_read(const hdc1000_t *dev, int16_t *temp, int16_t *hum);
168
184int hdc1000_read_cached(const hdc1000_t *dev, int16_t *temp, int16_t *hum);
185
186#ifdef __cplusplus
187}
188#endif
189
190#endif /* HDC1000_H */
int hdc1000_trigger_conversion(const hdc1000_t *dev)
Trigger a new conversion.
int hdc1000_get_results(const hdc1000_t *dev, int16_t *temp, int16_t *hum)
Read conversion results for temperature and humidity.
int hdc1000_init(hdc1000_t *dev, const hdc1000_params_t *params)
Initialize the given HDC1000 device.
hdc1000_res_t
Possible resolution values.
Definition hdc1000.h:94
int hdc1000_read_cached(const hdc1000_t *dev, int16_t *temp, int16_t *hum)
Extended read function including caching capability.
int hdc1000_read(const hdc1000_t *dev, int16_t *temp, int16_t *hum)
Convenience function for reading temperature and humidity.
@ HDC1000_14BIT
14-bit conversion
Definition hdc1000.h:96
@ HDC1000_11BIT
11-bit conversion
Definition hdc1000.h:95
@ HDC1000_NOBUS
errors while initializing the I2C bus
Definition hdc1000.h:87
@ HDC1000_BUSERR
error during I2C communication
Definition hdc1000.h:88
@ HDC1000_NODEV
no HDC1000 device found on the bus
Definition hdc1000.h:86
@ HDC1000_OK
everything went as expected
Definition hdc1000.h:85
uint_fast8_t i2c_t
Default i2c_t type definition.
Definition i2c.h:151
Register definitions for HDC1000 devices.
Low-level I2C peripheral driver interface definition.
Parameters needed for device initialization.
Definition hdc1000.h:102
uint32_t renew_interval
interval for cache renewal
Definition hdc1000.h:106
hdc1000_res_t res
resolution used for sampling temp and hum
Definition hdc1000.h:105
uint8_t addr
address on that bus
Definition hdc1000.h:104
i2c_t i2c
bus the device is connected to
Definition hdc1000.h:103
Device descriptor for HDC1000 sensors.
Definition hdc1000.h:112
hdc1000_params_t p
Configuration parameters.
Definition hdc1000.h:113