uploaded 4 months ago
I2C driver for AHT20 humidity and temperature sensor
readme
[](https://components.espressif.com/components/espressif/aht20)
# Component: AHT20
I2C driver and definition of AHT20 humidity and temperature sensor.
Components compatible with AHT30 and AHT21 (AHT21 is deprecated).
See [AHT20 datasheet](http://www.aosong.com/en/products-32.html), [AHT30 datasheet](http://www.aosong.com/en/products-131.html).
## Usage
### Initialization
> Note: Note: You need to initialize the I2C bus first.
```c
aht20_i2c_config_t i2c_conf = {
.i2c_port = I2C_MASTER_NUM,
.i2c_addr = AHT20_ADDRRES_0,
};
aht20_new_sensor(&i2c_conf, &handle);
```
### Read data
> The user can periodically call the aht20_read_temp_hum API to retrieve real-time data.
```c
uint32_t temp_raw, hum_raw;
float temp, hum;
aht20_read_temp_hum(aht20, &temp_raw, &temp, &hum_raw, &hum);
ESP_LOGI(TAG, "Humidity : %2.2f %%", hum);
ESP_LOGI(TAG, "Temperature : %2.2f degC", temp);
```
Links
- Homepage
-
Repository
afb63ab10176cdc9184028a9bd07d7f8737d2d96
- Issues
License: Apache-2.0
To add this component to your project, run:
download archive
idf.py add-dependency "espressif/aht20^1.0.1"
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