| # Copyright (c) 2019 Nordic Semiconductor ASA |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| description: | |
| Aosong DHT (Digital-output Humidity and Temperature Sensor) |
| |
| The Aosong DHT family of sensors provide temperature and humidity |
| measurements through a bidirectional serial digital signal. The |
| DHT11 uses a polymer humidity capacitor with NTC thermistor; the |
| DHT22 replaces the thermistor with a DS18B20 1-wire thermometer. |
| |
| The DHT22 is also known as an AM2303. |
| |
| compatible: "aosong,dht" |
| |
| include: sensor-device.yaml |
| |
| properties: |
| dio-gpios: |
| type: phandle-array |
| required: true |
| description: | |
| Pin on which sensor communication will be performed. |
| |
| Control and data are encoded by the duration of active low |
| signals. A pull up may be appropriate. |
| |
| dht22: |
| type: boolean |
| description: | |
| Set to identify sensor as a DHT22/AM2303. Leave unset to identify |
| sensor as a DHT11. |
