WIP
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@ -10,11 +10,9 @@
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#include "freertos/FreeRTOS.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "freertos/task.h"
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#define ZH_AHT_INIT_CONFIG_DEFAULT() \
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#define ZH_AHT_INIT_CONFIG_DEFAULT() \
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{ \
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{ \
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.sensor_type = ZH_AHT2X, \
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.i2c_port = 0 \
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.i2c_address = ZH_I2C_ADDRESS_LOW, \
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.i2c_port = 0 \
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}
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}
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#ifdef __cplusplus
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#ifdef __cplusplus
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@ -24,16 +22,6 @@ extern "C"
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typedef struct // Structure for initial initialization of AHT sensor.
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typedef struct // Structure for initial initialization of AHT sensor.
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{
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{
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enum // Sensor type.
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{
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ZH_AHT1X, // AHT10/AHT15.
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ZH_AHT2X // AHT20/AHT21/AHT25/AHT30.
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} sensor_type;
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enum // Sensor I2C address.
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{
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ZH_I2C_ADDRESS_HIGH = 0x39, // Address pin connected to VCC. AHT10 only.
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ZH_I2C_ADDRESS_LOW = 0x38 // AHT15/AHT20/AHT21/AHT25/AHT30. AHT10 address pin connected to GND.
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} i2c_address;
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bool i2c_port; // I2C port.
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bool i2c_port; // I2C port.
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#ifndef CONFIG_IDF_TARGET_ESP8266
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#ifndef CONFIG_IDF_TARGET_ESP8266
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i2c_master_bus_handle_t i2c_handle; // Unique I2C bus handle.
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i2c_master_bus_handle_t i2c_handle; // Unique I2C bus handle.
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@ -1 +1 @@
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1.1.0
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1.1.1
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19
zh_aht.c
19
zh_aht.c
@ -3,6 +3,7 @@
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#define I2C_MAX_DATA_SIZE 7 // Sensor maximum data size (in bytes).
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#define I2C_MAX_DATA_SIZE 7 // Sensor maximum data size (in bytes).
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#define MEASUREMENT_TIME 80 // Sensor measurement time (in milliseconds).
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#define MEASUREMENT_TIME 80 // Sensor measurement time (in milliseconds).
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#define RESET_TIME 20 // Sensor reset time (in milliseconds).
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#define RESET_TIME 20 // Sensor reset time (in milliseconds).
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#define I2C_ADDRESS 0x38 // Sensor I2C address.
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#define I2C_DATA_READ_COMMAND 0xAC, 0x33, 0x00 // Command for read sensor data (temperature and humidity).
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#define I2C_DATA_READ_COMMAND 0xAC, 0x33, 0x00 // Command for read sensor data (temperature and humidity).
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#define I2C_RESET_COMMAND 0xBA // Command for reset sensor.
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#define I2C_RESET_COMMAND 0xBA // Command for reset sensor.
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#define I2C_INIT_COMMAND 0x00, 0x08, 0x00 // Command for initialize sensor. First byte is depend of sensor type.
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#define I2C_INIT_COMMAND 0x00, 0x08, 0x00 // Command for initialize sensor. First byte is depend of sensor type.
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@ -32,11 +33,11 @@ esp_err_t zh_aht_init(const zh_aht_init_config_t *config)
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#ifndef CONFIG_IDF_TARGET_ESP8266
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#ifndef CONFIG_IDF_TARGET_ESP8266
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i2c_device_config_t aht_config = {
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i2c_device_config_t aht_config = {
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.dev_addr_length = I2C_ADDR_BIT_LEN_7,
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.dev_addr_length = I2C_ADDR_BIT_LEN_7,
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.device_address = _init_config.i2c_address,
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.device_address = I2C_ADDRESS,
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.scl_speed_hz = 100000,
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.scl_speed_hz = 100000,
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};
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};
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i2c_master_bus_add_device(_init_config.i2c_handle, &aht_config, &_aht_handle);
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i2c_master_bus_add_device(_init_config.i2c_handle, &aht_config, &_aht_handle);
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if (i2c_master_probe(_init_config.i2c_handle, _init_config.i2c_address, 1000 / portTICK_PERIOD_MS) != ESP_OK)
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if (i2c_master_probe(_init_config.i2c_handle, I2C_ADDRESS, 1000 / portTICK_PERIOD_MS) != ESP_OK)
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{
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{
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ESP_LOGE(TAG, "AHT initialization fail. Sensor not connected or not responded.");
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ESP_LOGE(TAG, "AHT initialization fail. Sensor not connected or not responded.");
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return ESP_ERR_NOT_FOUND;
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return ESP_ERR_NOT_FOUND;
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@ -48,7 +49,7 @@ esp_err_t zh_aht_init(const zh_aht_init_config_t *config)
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#ifdef CONFIG_IDF_TARGET_ESP8266
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#ifdef CONFIG_IDF_TARGET_ESP8266
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i2c_cmd_handle_t i2c_cmd_handle = i2c_cmd_link_create();
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i2c_cmd_handle_t i2c_cmd_handle = i2c_cmd_link_create();
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i2c_master_start(i2c_cmd_handle);
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i2c_master_start(i2c_cmd_handle);
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i2c_master_write_byte(i2c_cmd_handle, _init_config.i2c_address << 1 | I2C_MASTER_WRITE, true);
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i2c_master_write_byte(i2c_cmd_handle, I2C_ADDRESS << 1 | I2C_MASTER_WRITE, true);
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i2c_master_write_byte(i2c_cmd_handle, command, true);
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i2c_master_write_byte(i2c_cmd_handle, command, true);
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i2c_master_stop(i2c_cmd_handle);
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i2c_master_stop(i2c_cmd_handle);
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esp_err = i2c_master_cmd_begin(_init_config.i2c_port, i2c_cmd_handle, 1000 / portTICK_PERIOD_MS);
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esp_err = i2c_master_cmd_begin(_init_config.i2c_port, i2c_cmd_handle, 1000 / portTICK_PERIOD_MS);
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@ -64,7 +65,7 @@ esp_err_t zh_aht_init(const zh_aht_init_config_t *config)
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#ifdef CONFIG_IDF_TARGET_ESP8266
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#ifdef CONFIG_IDF_TARGET_ESP8266
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i2c_cmd_handle = i2c_cmd_link_create();
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i2c_cmd_handle = i2c_cmd_link_create();
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i2c_master_start(i2c_cmd_handle);
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i2c_master_start(i2c_cmd_handle);
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i2c_master_write_byte(i2c_cmd_handle, _init_config.i2c_address << 1 | I2C_MASTER_READ, true);
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i2c_master_write_byte(i2c_cmd_handle, I2C_ADDRESS << 1 | I2C_MASTER_READ, true);
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i2c_master_read_byte(i2c_cmd_handle, &sensor_data, I2C_MASTER_NACK);
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i2c_master_read_byte(i2c_cmd_handle, &sensor_data, I2C_MASTER_NACK);
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i2c_master_stop(i2c_cmd_handle);
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i2c_master_stop(i2c_cmd_handle);
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esp_err = i2c_master_cmd_begin(_init_config.i2c_port, i2c_cmd_handle, 1000 / portTICK_PERIOD_MS);
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esp_err = i2c_master_cmd_begin(_init_config.i2c_port, i2c_cmd_handle, 1000 / portTICK_PERIOD_MS);
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@ -91,7 +92,7 @@ esp_err_t zh_aht_init(const zh_aht_init_config_t *config)
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#ifdef CONFIG_IDF_TARGET_ESP8266
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#ifdef CONFIG_IDF_TARGET_ESP8266
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i2c_cmd_handle_t i2c_cmd_handle = i2c_cmd_link_create();
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i2c_cmd_handle_t i2c_cmd_handle = i2c_cmd_link_create();
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i2c_master_start(i2c_cmd_handle);
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i2c_master_start(i2c_cmd_handle);
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i2c_master_write_byte(i2c_cmd_handle, _init_config.i2c_address << 1 | I2C_MASTER_WRITE, true);
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i2c_master_write_byte(i2c_cmd_handle, I2C_ADDRESS << 1 | I2C_MASTER_WRITE, true);
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i2c_master_write_byte(i2c_cmd_handle, command[0], true);
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i2c_master_write_byte(i2c_cmd_handle, command[0], true);
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i2c_master_write_byte(i2c_cmd_handle, command[1], true);
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i2c_master_write_byte(i2c_cmd_handle, command[1], true);
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i2c_master_write_byte(i2c_cmd_handle, command[2], true);
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i2c_master_write_byte(i2c_cmd_handle, command[2], true);
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@ -131,7 +132,7 @@ esp_err_t zh_aht_read(float *humidity, float *temperature)
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#ifdef CONFIG_IDF_TARGET_ESP8266
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#ifdef CONFIG_IDF_TARGET_ESP8266
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i2c_cmd_handle_t i2c_cmd_handle = i2c_cmd_link_create();
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i2c_cmd_handle_t i2c_cmd_handle = i2c_cmd_link_create();
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i2c_master_start(i2c_cmd_handle);
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i2c_master_start(i2c_cmd_handle);
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i2c_master_write_byte(i2c_cmd_handle, _init_config.i2c_address << 1 | I2C_MASTER_WRITE, true);
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i2c_master_write_byte(i2c_cmd_handle, I2C_ADDRESS << 1 | I2C_MASTER_WRITE, true);
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i2c_master_write_byte(i2c_cmd_handle, command[0], true);
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i2c_master_write_byte(i2c_cmd_handle, command[0], true);
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i2c_master_write_byte(i2c_cmd_handle, command[1], true);
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i2c_master_write_byte(i2c_cmd_handle, command[1], true);
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i2c_master_write_byte(i2c_cmd_handle, command[2], true);
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i2c_master_write_byte(i2c_cmd_handle, command[2], true);
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@ -150,7 +151,7 @@ esp_err_t zh_aht_read(float *humidity, float *temperature)
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#ifdef CONFIG_IDF_TARGET_ESP8266
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#ifdef CONFIG_IDF_TARGET_ESP8266
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i2c_cmd_handle = i2c_cmd_link_create();
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i2c_cmd_handle = i2c_cmd_link_create();
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i2c_master_start(i2c_cmd_handle);
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i2c_master_start(i2c_cmd_handle);
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i2c_master_write_byte(i2c_cmd_handle, _init_config.i2c_address << 1 | I2C_MASTER_READ, true);
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i2c_master_write_byte(i2c_cmd_handle, I2C_ADDRESS << 1 | I2C_MASTER_READ, true);
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for (uint8_t i = 0; i < sizeof(sensor_data); ++i)
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for (uint8_t i = 0; i < sizeof(sensor_data); ++i)
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{
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{
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i2c_master_read_byte(i2c_cmd_handle, &sensor_data[i], i == (sizeof(sensor_data) - 1) ? I2C_MASTER_NACK : I2C_MASTER_ACK);
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i2c_master_read_byte(i2c_cmd_handle, &sensor_data[i], i == (sizeof(sensor_data) - 1) ? I2C_MASTER_NACK : I2C_MASTER_ACK);
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@ -171,7 +172,7 @@ esp_err_t zh_aht_read(float *humidity, float *temperature)
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ESP_LOGE(TAG, "AHT read fail. Timeout exceeded.");
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ESP_LOGE(TAG, "AHT read fail. Timeout exceeded.");
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return ESP_ERR_TIMEOUT;
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return ESP_ERR_TIMEOUT;
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}
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}
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if (_init_config.sensor_type != ZH_AHT1X)
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if (sensor_data[6] != 0x00 || sensor_data[6] != 0xFF)
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{
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{
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if (_calc_crc(sensor_data, I2C_MAX_DATA_SIZE - 1) != sensor_data[6])
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if (_calc_crc(sensor_data, I2C_MAX_DATA_SIZE - 1) != sensor_data[6])
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{
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{
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@ -198,7 +199,7 @@ esp_err_t zh_aht_reset(void)
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#ifdef CONFIG_IDF_TARGET_ESP8266
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#ifdef CONFIG_IDF_TARGET_ESP8266
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i2c_cmd_handle_t i2c_cmd_handle = i2c_cmd_link_create();
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i2c_cmd_handle_t i2c_cmd_handle = i2c_cmd_link_create();
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i2c_master_start(i2c_cmd_handle);
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i2c_master_start(i2c_cmd_handle);
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i2c_master_write_byte(i2c_cmd_handle, _init_config.i2c_address << 1 | I2C_MASTER_WRITE, true);
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i2c_master_write_byte(i2c_cmd_handle, I2C_ADDRESS << 1 | I2C_MASTER_WRITE, true);
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i2c_master_write_byte(i2c_cmd_handle, command, true);
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i2c_master_write_byte(i2c_cmd_handle, command, true);
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i2c_master_stop(i2c_cmd_handle);
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i2c_master_stop(i2c_cmd_handle);
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esp_err = i2c_master_cmd_begin(_init_config.i2c_port, i2c_cmd_handle, 1000 / portTICK_PERIOD_MS);
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esp_err = i2c_master_cmd_begin(_init_config.i2c_port, i2c_cmd_handle, 1000 / portTICK_PERIOD_MS);
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