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38 #include "drv_digital_out.h"
39 #include "drv_digital_in.h"
51 #define DHT222_MAP_MIKROBUS( cfg, mikrobus ) \
52 cfg.scl = MIKROBUS( mikrobus, MIKROBUS_SCL ); \
53 cfg.sda = MIKROBUS( mikrobus, MIKROBUS_SDA );
61 #define DHT222_ERROR -1
68 #define DHT222_I2C_ADDRESS_WRITE 0xB8
69 #define DHT222_I2C_ADDRESS_READ 0xB9
76 #define DHT222_REG_HUMIDITY_MSB 0x00
77 #define DHT222_REG_HUMIDITY_LSB 0x01
78 #define DHT222_REG_TEMPERATURE_MSB 0x02
79 #define DHT222_REG_TEMPERATURE_LSB 0x03
80 #define DHT222_REG_MODEL_MSB 0x08
81 #define DHT222_REG_MODEL_LSB 0x09
82 #define DHT222_REG_VERSION 0x0A
83 #define DHT222_REG_DEVICE_ID_3 0x0B
84 #define DHT222_REG_DEVICE_ID_2 0x0C
85 #define DHT222_REG_DEVICE_ID_1 0x0D
86 #define DHT222_REG_DEVICE_ID_0 0x0E
87 #define DHT222_REG_STATE 0x0F
88 #define DHT222_REG_USER_REG_1_MSB 0x10
89 #define DHT222_REG_USER_REG_1_LSB 0x11
90 #define DHT222_REG_USER_REG_2_MSB 0x12
91 #define DHT222_REG_USER_REG_2_LSB 0x13
98 #define DHT222_CMD_READ 0x03
99 #define DHT222_CMD_WRITE 0x10
106 #define DHT222_TIMEOUT 100000ul
pin_name_t sda
Definition: dht222.h:134
Click ctx object definition.
Definition: dht222.h:120
err_t dht222_get_temperature(dht222_t *ctx, uint16_t *temperature)
Reads temperature from AM2322 sensor.
err_t dht222_get_humidity(dht222_t *ctx, uint16_t *humidity)
Reads humidity from AM2322 sensor.
err_t dht222_read_reg(dht222_t *ctx, uint8_t address, uint8_t *data_out, uint8_t len)
Generic read function.
Click configuration structure definition.
Definition: dht222.h:132
err_t dht222_write_reg(dht222_t *ctx, uint8_t address, uint8_t *data_in, uint8_t len)
Generic write function.
uint8_t i2c_started
Definition: dht222.h:124
void dht222_cfg_setup(dht222_cfg_t *cfg)
Config Object Initialization function.
err_t dht222_get_temp_hum(dht222_t *ctx, uint16_t *temperature, uint16_t *humidity)
Reads temperature and humidity from AM2322 sensor.
err_t dht222_init(dht222_t *ctx, dht222_cfg_t *cfg)
Initialization function.
pin_name_t sda
Definition: dht222.h:122
pin_name_t scl
Definition: dht222.h:133
pin_name_t scl
Definition: dht222.h:121