https://github.com/michaelbeaumont/dht-sensor

Rust embedded-hal based driver for the DHT11/DHT22 sensor
https://github.com/michaelbeaumont/dht-sensor

embedded-hal embedded-hal-driver

Last synced: about 2 months ago
JSON representation

Rust embedded-hal based driver for the DHT11/DHT22 sensor

• Host: GitHub
• URL: https://github.com/michaelbeaumont/dht-sensor
• Owner: michaelbeaumont
• License: mit
• Created: 2020-01-09T00:09:15.000Z (over 5 years ago)
• Default Branch: main
• Last Pushed: 2024-10-19T15:03:20.000Z (7 months ago)
• Last Synced: 2025-03-29T05:07:56.144Z (about 2 months ago)
• Topics: embedded-hal, embedded-hal-driver
• Language: Rust
• Homepage:
• Size: 34.2 KB
• Stars: 32
• Watchers: 3
• Forks: 17
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE

Awesome Lists containing this project

README

        
# DHT11/DHT22 sensor driver

[![crates.io](https://img.shields.io/crates/v/dht-sensor)](https://crates.io/crates/dht-sensor)

[![Docs](https://docs.rs/dht-sensor/badge.svg)](https://docs.rs/dht-sensor)

This library provides a platform-agnostic driver for the [DHT11 and DHT22](https://learn.adafruit.com/dht/overview) sensors.

Use one of two functions `dht11::Reading::read` and `dht22::Reading::read` to get a reading.

## Usage

The only prerequisites are an embedded-hal implementation that provides:

- `Delay`-implementing type, for example Cortex-M microcontrollers typically use the `SysTick`.

- `InputOutputPin`-implementing type, for example an `Output` from `stm32f0xx_hal`.

  - Note that you'll almost certainly need to configure your pin as open drain. See [#23](https://github.com/michaelbeaumont/dht-sensor/issues/23) for some discussion.

See the [stm32f042 example](examples/stm32f042.rs) for a commented example of

how to use the library.

### Release mode may be required

Compiling in debug mode may disturb the timing-sensitive parts of this crate and ultimately lead to failure.

In this case, you will likely receive a `Timeout` error. Try compiling with `--release` instead.

### Tests

To run the tests, use something like `cargo test --lib --target x86_64-unknown-linux-gnu`.