sht1x.h

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/*
 * Copyright 2009 Freie Universitaet Berlin (FUB)
 *           2018 Otto-von-Guericke-Universität Magdeburg
 *
 * This file is subject to the terms and conditions of the GNU Lesser
 * General Public License v2.1. See the file LICENSE in the top level
 * directory for more details.
 */
 
#pragma once

 
#include <stdint.h>
#include <periph/gpio.h>
 
#ifdef __cplusplus
extern "C" {
#endif

typedef enum {
    SHT1X_CONF_LOW_RESOLUTION   = 0x01,
    SHT1X_CONF_SKIP_CALIBRATION = 0x02,
    SHT1X_CONF_ENABLE_HEATER    = 0x04,
    SHT1X_CONF_SKIP_CRC         = 0x08,
} sht1x_conf_t;

typedef enum {
    SHT1X_VDD_5_0V = 0,
    SHT1X_VDD_4_0V = 1,
    SHT1X_VDD_3_5V = 2,
    SHT1X_VDD_3_0V = 3,
    SHT1X_VDD_2_5V = 4,
} sht1x_vdd_t;

typedef struct {
    gpio_t  clk;      
    gpio_t  data;     
    int16_t temp_off; 
    int16_t hum_off;  
    uint8_t conf;     
    uint8_t vdd;      
} sht1x_dev_t;

typedef struct {
    gpio_t      clk;  
    gpio_t      data; 
    sht1x_vdd_t vdd;  
} sht1x_params_t;

int sht1x_init(sht1x_dev_t *dev, const sht1x_params_t *params);

int16_t sht1x_temperature(const sht1x_dev_t *dev, uint16_t raw);

int16_t sht1x_humidity(const sht1x_dev_t *dev, uint16_t raw, int16_t temp);

int sht1x_read(const sht1x_dev_t *dev, int16_t *temp, int16_t *hum);

int sht1x_configure(sht1x_dev_t *dev, sht1x_conf_t conf);

int sht1x_read_status(sht1x_dev_t *dev, uint8_t *status);

int sht1x_reset(sht1x_dev_t *dev);
 
#ifdef __cplusplus
}
#endif