alexey.zholtikov/zh_dht
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Alexey Zholtikov
2024-06-19 17:55:42 +03:00
parent 2c856c08f2
commit 3d7987b803
1 changed files with 74 additions and 71 deletions
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21
zh_dht.c
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@ -35,23 +35,23 @@ esp_err_t zh_dht_init(const zh_dht_init_config_t *config)
_init_config = *config;
if (_init_config.sensor_pin != 0xFF)
{
gpio_config_t cfg = {0};
cfg.intr_type = GPIO_INTR_DISABLE;
cfg.mode = GPIO_MODE_INPUT;
cfg.pin_bit_mask = (1ULL << _init_config.sensor_pin);
cfg.pull_down_en = GPIO_PULLDOWN_DISABLE;
cfg.pull_up_en = GPIO_PULLUP_ENABLE;
if (gpio_config(&cfg) != ESP_OK)
gpio_config_t one_wire_config = {0};
one_wire_config.intr_type = GPIO_INTR_DISABLE;
one_wire_config.mode = GPIO_MODE_INPUT;
one_wire_config.pin_bit_mask = (1ULL << _init_config.sensor_pin);
one_wire_config.pull_down_en = GPIO_PULLDOWN_DISABLE;
one_wire_config.pull_up_en = GPIO_PULLUP_ENABLE;
if (gpio_config(&one_wire_config) != ESP_OK)
{
ESP_LOGE(TAG, "DHT initialization fail. Incorrect GPIO number.");
return ESP_FAIL;
return ESP_ERR_INVALID_ARG;
}
ESP_LOGI(TAG, "DHT initialization success. 1-wire connection.");
}
else
{
// I2C.
}
ESP_LOGI(TAG, "DHT initialization success.");
_is_initialized = true;
return ESP_OK;
}
@ -69,6 +69,8 @@ esp_err_t zh_dht_read(float *humidity, float *temperature)
ESP_LOGE(TAG, "DHT read fail. BH1750 not initialized.");
return ESP_ERR_NOT_FOUND;
}
if (_init_config.sensor_pin != 0xFF)
{
if (gpio_get_level(_init_config.sensor_pin) != 1)
{
ESP_LOGE(TAG, "DHT read fail. Bus is busy.");
@ -145,6 +147,7 @@ esp_err_t zh_dht_read(float *humidity, float *temperature)
{
*temperature *= -1;
}
}
ESP_LOGI(TAG, "DHT read success.");
return ESP_OK;
}