https://github.com/synthead/gpio_sysfs

Portable sysfs-based GPIO library for Ruby
https://github.com/synthead/gpio_sysfs

Last synced: 3 days ago
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Portable sysfs-based GPIO library for Ruby

• Host: GitHub
• URL: https://github.com/synthead/gpio_sysfs
• Owner: synthead
• Created: 2021-11-29T06:01:05.000Z (almost 3 years ago)
• Default Branch: main
• Last Pushed: 2021-11-29T09:13:15.000Z (almost 3 years ago)
• Last Synced: 2024-03-25T01:42:45.018Z (8 months ago)
• Language: Ruby
• Size: 5.86 KB
• Stars: 2
• Watchers: 3
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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README

        
# Summary

gpio\_sysfs is a simple, cross-platform GPIO library for Ruby that interacts

with sysfs without any gem dependencies.  This allows this library to interact

with a variety of GPIO interfaces from various vendors with ease.

Unlike some similar libraries, gpio\_sysfs does not read and write to

`/dev/mem`, which requires the root user to be running the code.  The user only

needs to have write access to `/sys/class/gpio`.

# Usage

To read from a pin:

```ruby

require "gpio_sysfs"

pin = GpioSysfs::Pin.new(18)

pin.direction = "in"

pin.value  # Returns true or false.

```

To write to a pin:

```ruby

require "gpio_sysfs"

pin = GpioSysfs::Pin.new(18)

pin.value = true

```

# Testing

The test suite will run on any machine with:

```shell

bundle exec rspec

```