| .. _dht: |
| |
| DHT: Aosong DHT Digital-output Humidity and Temperature Sensor |
| ############################################################## |
| |
| Description |
| *********** |
| |
| This sample application periodically (0.5 Hz) measures the ambient |
| temperature and humidity. The result is written to the console. |
| |
| Wiring |
| ******* |
| |
| This sample uses an external breakout for the sensor. A devicetree |
| overlay must be provided to identify the sensor variant and the GPIO |
| used to control the sensor. |
| |
| Building and Running |
| ******************** |
| |
| After providing a devicetree overlay that specifies the sensor location, |
| build this sample app using: |
| |
| .. zephyr-app-commands:: |
| :zephyr-app: samples/sensor/dht |
| :board: nrf52dk_nrf52832 |
| :goals: build flash |
| |
| Sample Output |
| ============= |
| |
| .. code-block:: console |
| |
| *** Booting Zephyr OS build zephyr-v2.1.0-329-g38418b26c4cc *** |
| [0:00:00.027]: 20.0 Cel ; 48.7 %RH |
| [0:00:02.053]: 19.8 Cel ; 48.7 %RH |
| [0:00:04.079]: 20.0 Cel ; 48.7 %RH |
| [0:00:06.105]: 19.8 Cel ; 48.7 %RH |
| [0:00:08.130]: 20.0 Cel ; 48.8 %RH |
| [0:00:10.156]: 20.1 Cel ; 48.8 %RH |
| [0:00:12.182]: 19.7 Cel ; 48.7 %RH |
| [0:00:14.207]: 20.0 Cel ; 48.8 %RH |
| |
| <repeats endlessly> |
