https://github.com/micheltlutz/DHT-SwiftyGPIO

SwiftyGPIO with RaspberryPi + DHT11 Module
https://github.com/micheltlutz/DHT-SwiftyGPIO

dht11 dht22 gpio iot raspberry-pi swift swiftygpio

Last synced: 3 months ago
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SwiftyGPIO with RaspberryPi + DHT11 Module

• Host: GitHub
• URL: https://github.com/micheltlutz/DHT-SwiftyGPIO
• Owner: micheltlutz
• Created: 2019-03-10T15:37:09.000Z (over 5 years ago)
• Default Branch: develop
• Last Pushed: 2020-04-10T19:39:11.000Z (about 4 years ago)
• Last Synced: 2024-01-20T15:18:05.374Z (5 months ago)
• Topics: dht11, dht22, gpio, iot, raspberry-pi, swift, swiftygpio
• Language: Swift
• Homepage: https://micheltlutz.me/post/raspberry-pi-dhtswiftygpio
• Size: 85.9 KB
• Stars: 14
• Watchers: 2
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Lists

• awesome-embedded-swift - DHT-SwiftyGPIO - SwiftyGPIO with RaspberryPi + DHT11 Module (Sensors / Networking, IoT, Bus Protocols, …)

README

        
# DHT-SwiftyGPIO

Using Swift to display temperature and humidity of a DHT11 module

## Requirements

Raspberry Pi 2+ or Raspberry Pi 3 Model B

Model DHT11 or DHT22









##  Installing Dependencies

To use the provided prebuilt binaries you'll need the install the following dependencies:

```sudo apt install clang libicu-dev libcurl4-nss-dev```

## Starting 







[https://github.com/uraimo/SwiftyGPIO](https://github.com/uraimo/SwiftyGPIO)

Download last version swift ARM compatible with your board, see table:

[Build Swift On ARM prebuilt-binaries](https://github.com/uraimo/buildSwiftOnARM#prebuilt-binaries)

and Download

```wget https://github.com/uraimo/buildSwiftOnARM/releases/download/4.2.3/swift-4.2.3-RPi23-RaspbianStretch.tgz```

Unzip the files to a folder of your choice:

For example: /home/michel/swift-4.2.3/

After unzip, export path:

``` export PATH=/home/michel/swift-4.2.3/usr/bin:"${PATH}" ```

Test if everything went right run command:

``` swift --version ```

And the output should be like this:

```

Swift version 4.2.3 (swift-4.2.3-RELEASE)

Target: armv7-unknown-linux-gnueabihf

```

# Clone and run project

```$ git clone https://github.com/micheltlutz/DHT-SwiftyGPIO ```

```$ cd DHT-SwiftyGPIO```

```$ swift run ```

Waiting output should be like this:

```Temperatura: 25.0  Humidade: 41.0```

## Reference files

The DHT.swift was based on the project [dhtxx](https://github.com/pj4533/dhtxx) But with modifications

DHT class init allows you to select the sensor type and data conversion by default is used Celcius

### Enums Types

```swift 

public enum SupportedSensor {

    case dht11, dht22

}

public enum ConversionType {

    case Fahrenheit, Celsius

}

init(pin: GPIO, for sensor: SupportedSensor, conversion: ConversionType = .Celsius) { }

...

```

### Example create module DHT11 Object

```swift

let dht = DHT(pin: gpios[.P4]!, for: .dht11)

```

### Issues

Initial reading errors occur due to initial pulse failure

Usually get a good reading within the past 60s, many times more often than that

I hope this project helps start with the creation of IoT projects with Swift

[My Blog Post](https://micheltlutz.me/post/raspberry-pi-dhtswiftygpio)