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Alexey Zholtikov 2024-07-21 08:42:54 +03:00
parent 1afca3c9ec
commit 0e12c62fa4
2 changed files with 39 additions and 19 deletions
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4
README.md
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@ -5,6 +5,10 @@
1. ESP8266 RTOS_SDK v3.4
2. ESP32 ESP-IDF v5.2
## Features
1. Autodetect sensor type.
## Using
In an existing project, run the following command to install the component:

54
zh_aht.c
View File

@ -44,18 +44,18 @@ esp_err_t zh_aht_init(const zh_aht_init_config_t *config)
}
#endif
esp_err_t err = ESP_OK;
uint8_t command = I2C_STATUS_READ_COMMAND;
uint8_t status_read_command = I2C_STATUS_READ_COMMAND;
uint8_t sensor_data = 0;
#ifdef CONFIG_IDF_TARGET_ESP8266
i2c_cmd_handle_t i2c_cmd_handle = i2c_cmd_link_create();
i2c_master_start(i2c_cmd_handle);
i2c_master_write_byte(i2c_cmd_handle, I2C_ADDRESS << 1 | I2C_MASTER_WRITE, true);
i2c_master_write_byte(i2c_cmd_handle, command, true);
i2c_master_write_byte(i2c_cmd_handle, status_read_command, true);
i2c_master_stop(i2c_cmd_handle);
esp_err = i2c_master_cmd_begin(_init_config.i2c_port, i2c_cmd_handle, 1000 / portTICK_PERIOD_MS);
i2c_cmd_link_delete(i2c_cmd_handle);
#else
err = i2c_master_transmit(_aht_handle, &command, sizeof(command), 1000 / portTICK_PERIOD_MS);
err = i2c_master_transmit(_aht_handle, &status_read_command, sizeof(status_read_command), 1000 / portTICK_PERIOD_MS);
#endif
if (err != ESP_OK)
{
@ -80,29 +80,26 @@ esp_err_t zh_aht_init(const zh_aht_init_config_t *config)
}
if ((sensor_data & 0x08) == 0) // If sensor is not calibrated.
{
sensor_data = 0;
uint8_t command[] = {I2C_INIT_COMMAND};
command[0] = I2C_INIT_AHT2X_FIRST_BYTE;
uint8_t init_command[] = {I2C_INIT_COMMAND};
uint8_t check_command = I2C_INIT_AHT2X_FIRST_BYTE;
bool is_first_check = false;
INIT_SENSOR:;
#ifdef CONFIG_IDF_TARGET_ESP8266
i2c_cmd_handle_t i2c_cmd_handle = i2c_cmd_link_create();
i2c_master_start(i2c_cmd_handle);
i2c_master_write_byte(i2c_cmd_handle, I2C_ADDRESS << 1 | I2C_MASTER_WRITE, true);
i2c_master_write_byte(i2c_cmd_handle, command[0], true);
i2c_master_write_byte(i2c_cmd_handle, command[1], true);
i2c_master_write_byte(i2c_cmd_handle, command[2], true);
i2c_master_write_byte(i2c_cmd_handle, check_command, true);
i2c_master_stop(i2c_cmd_handle);
esp_err = i2c_master_cmd_begin(_init_config.i2c_port, i2c_cmd_handle, 1000 / portTICK_PERIOD_MS);
i2c_cmd_link_delete(i2c_cmd_handle);
#else
err = i2c_master_transmit(_aht_handle, command, sizeof(command), 1000 / portTICK_PERIOD_MS);
err = i2c_master_transmit(_aht_handle, &check_command, sizeof(check_command), 1000 / portTICK_PERIOD_MS);
#endif
if (err != ESP_OK)
{
if (err == ESP_ERR_INVALID_STATE && is_first_check == false)
{
command[0] = I2C_INIT_AHT1X_FIRST_BYTE;
check_command = I2C_INIT_AHT1X_FIRST_BYTE;
is_first_check = true;
goto INIT_SENSOR;
}
@ -112,6 +109,25 @@ esp_err_t zh_aht_init(const zh_aht_init_config_t *config)
return ESP_ERR_INVALID_RESPONSE;
}
}
init_command[0] = check_command;
#ifdef CONFIG_IDF_TARGET_ESP8266
i2c_cmd_handle_t i2c_cmd_handle = i2c_cmd_link_create();
i2c_master_start(i2c_cmd_handle);
i2c_master_write_byte(i2c_cmd_handle, I2C_ADDRESS << 1 | I2C_MASTER_WRITE, true);
i2c_master_write_byte(i2c_cmd_handle, init_command[0], true);
i2c_master_write_byte(i2c_cmd_handle, init_command[1], true);
i2c_master_write_byte(i2c_cmd_handle, init_command[2], true);
i2c_master_stop(i2c_cmd_handle);
esp_err = i2c_master_cmd_begin(_init_config.i2c_port, i2c_cmd_handle, 1000 / portTICK_PERIOD_MS);
i2c_cmd_link_delete(i2c_cmd_handle);
#else
err = i2c_master_transmit(_aht_handle, init_command, sizeof(init_command), 1000 / portTICK_PERIOD_MS);
#endif
if (err != ESP_OK)
{
ESP_LOGE(TAG, "AHT initialization fail. I2C driver error at line %d.", __LINE__);
return ESP_ERR_INVALID_RESPONSE;
}
}
ESP_LOGI(TAG, "AHT initialization success.");
_is_initialized = true;
@ -133,19 +149,19 @@ esp_err_t zh_aht_read(float *humidity, float *temperature)
}
esp_err_t err = ESP_OK;
uint8_t sensor_data[I2C_MAX_DATA_SIZE] = {0};
uint8_t command[] = {I2C_DATA_READ_COMMAND};
uint8_t data_read_command[] = {I2C_DATA_READ_COMMAND};
#ifdef CONFIG_IDF_TARGET_ESP8266
i2c_cmd_handle_t i2c_cmd_handle = i2c_cmd_link_create();
i2c_master_start(i2c_cmd_handle);
i2c_master_write_byte(i2c_cmd_handle, I2C_ADDRESS << 1 | I2C_MASTER_WRITE, true);
i2c_master_write_byte(i2c_cmd_handle, command[0], true);
i2c_master_write_byte(i2c_cmd_handle, command[1], true);
i2c_master_write_byte(i2c_cmd_handle, command[2], true);
i2c_master_write_byte(i2c_cmd_handle, data_read_command[0], true);
i2c_master_write_byte(i2c_cmd_handle, data_read_command[1], true);
i2c_master_write_byte(i2c_cmd_handle, data_read_command[2], true);
i2c_master_stop(i2c_cmd_handle);
esp_err = i2c_master_cmd_begin(_init_config.i2c_port, i2c_cmd_handle, 1000 / portTICK_PERIOD_MS);
i2c_cmd_link_delete(i2c_cmd_handle);
#else
err = i2c_master_transmit(_aht_handle, command, sizeof(command), 1000 / portTICK_PERIOD_MS);
err = i2c_master_transmit(_aht_handle, data_read_command, sizeof(data_read_command), 1000 / portTICK_PERIOD_MS);
#endif
if (err != ESP_OK)
{
@ -200,17 +216,17 @@ esp_err_t zh_aht_reset(void)
return ESP_ERR_NOT_FOUND;
}
esp_err_t err = ESP_OK;
uint8_t command = I2C_RESET_COMMAND;
uint8_t reset_command = I2C_RESET_COMMAND;
#ifdef CONFIG_IDF_TARGET_ESP8266
i2c_cmd_handle_t i2c_cmd_handle = i2c_cmd_link_create();
i2c_master_start(i2c_cmd_handle);
i2c_master_write_byte(i2c_cmd_handle, I2C_ADDRESS << 1 | I2C_MASTER_WRITE, true);
i2c_master_write_byte(i2c_cmd_handle, command, true);
i2c_master_write_byte(i2c_cmd_handle, reset_command, true);
i2c_master_stop(i2c_cmd_handle);
esp_err = i2c_master_cmd_begin(_init_config.i2c_port, i2c_cmd_handle, 1000 / portTICK_PERIOD_MS);
i2c_cmd_link_delete(i2c_cmd_handle);
#else
err = i2c_master_transmit(_aht_handle, &command, sizeof(command), 1000 / portTICK_PERIOD_MS);
err = i2c_master_transmit(_aht_handle, &reset_command, sizeof(reset_command), 1000 / portTICK_PERIOD_MS);
#endif
if (err != ESP_OK)
{