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38 #include "mikrosdk_version.h"
41 #if mikroSDK_GET_VERSION < 20800ul
42 #include "rcu_delays.h"
48 #include "drv_digital_out.h"
49 #include "drv_i2c_master.h"
62 #define HTU21D_MAP_MIKROBUS( cfg, mikrobus ) \
63 cfg.scl = MIKROBUS( mikrobus, MIKROBUS_SCL ); \
64 cfg.sda = MIKROBUS( mikrobus, MIKROBUS_SDA )
71 #define HTU21D_RETVAL uint8_t
73 #define HTU21D_OK 0x00
74 #define HTU21D_INIT_ERROR 0xFF
82 #define HTU21D_I2C_ADDRESS 0x40
89 #define HTU21D_USER_REG_WRITE 0xE6
96 #define HTU21D_USER_REG_READ 0xE7
103 #define HTU21D_HEATER_REG_WRITE 0x51
110 #define HTU21D_HEATER_REG_READ 0x11
117 #define HTU21D_SOFT_RESET 0xFE
124 #define HTU21D_SERIAL1_READ1 0xFA
131 #define HTU21D_SERIAL1_READ2 0x0F
138 #define HTU21D_SERIAL2_READ1 0xFC
145 #define HTU21D_SERIAL2_READ2 0xC9
152 #define HTU21D_SI7013_CHIPID 0x0D
159 #define HTU21D_SI7020_CHIPID 0x14
166 #define HTU21D_SI7021_CHIPID 0x15
173 #define HTU21D_CHIPID 0x32
180 #define HTU21D_FIRMWARE_READ1 0x84
187 #define HTU21D_FIRMWARE_READ2 0xB8
194 #define HTU21D_FIRMWARE_V1 0xFF
201 #define HTU21D_FIRMWARE_V2 0x20
208 #define HTU21D_FORCE_READ_TEMP 0xFE
215 #define HTU21D_ERROR 0xFF
222 #define HTU21D_RES_RH12_TEMP14 0x00
229 #define HTU21D_RES_RH8_TEMP12 0x01
236 #define HTU21D_RES_RH10_TEMP13 0x80
243 #define HTU21D_RES_RH11_TEMP11 0x81
250 #define HTU21D_TRIG_HUMD_MEASURE_HOLD 0xE5
257 #define HTU21D_TRIG_HUMD_MEASURE_NOHOLD 0xF5
264 #define HTU21D_TRIG_TEMP_MEASURE_HOLD 0xE3
271 #define HTU21D_TRIG_TEMP_MEASURE_NOHOLD 0xF3
278 #define HTU21D_ON 0x04
285 #define HTU21D_OFF 0xFB
292 #define HTU21D_CRC8_POLYNOMINAL 0x1310
299 #define HTU21D_DATA_FILTER 0xFFFC
300 #define HTU21D_DATA_RESOLUTION 65536.0
301 #define HTU21D_TEMP_CALC_COEF 175.72
302 #define HTU21D_TEMP_STB_COEF -46.85
303 #define HTU21D_HUMI_CALC_COEF 125.0
304 #define HTU21D_HUMI_STB_COEF 6.0
pin_name_t scl
Definition: htu21d.h:336
float htu21d_get_temperature(htu21d_t *ctx)
Get temperature value function.
Click ctx object definition.
Definition: htu21d.h:318
void htu21d_cfg_setup(htu21d_cfg_t *cfg)
Config Object Initialization function.
void htu21d_generic_write(htu21d_t *ctx, uint8_t reg, uint8_t *data_buf, uint8_t len)
Generic write function.
pin_name_t sda
Definition: htu21d.h:337
#define HTU21D_RETVAL
Definition: htu21d.h:71
void htu21d_send_cmd(htu21d_t *ctx, uint8_t cmd_byte)
Send command function.
uint8_t i2c_address
Definition: htu21d.h:342
HTU21D_RETVAL htu21d_init(htu21d_t *ctx, htu21d_cfg_t *cfg)
Initialization function.
uint8_t slave_address
Definition: htu21d.h:325
void htu21d_generic_read(htu21d_t *ctx, uint8_t reg, uint8_t *data_buf, uint8_t len)
Generic read function.
uint32_t i2c_speed
Definition: htu21d.h:341
uint32_t htu21d_read_data(htu21d_t *ctx, uint8_t reg_adr)
Generic read 24-bit data function.
i2c_master_t i2c
Definition: htu21d.h:321
float htu21d_get_humidity(htu21d_t *ctx)
Get humidity value function.
Click configuration structure definition.
Definition: htu21d.h:333