railsbob / em-gpio

EM::Gpio

EM::Gpio is an eventmachine compatible gpio library for raspberry-pi.

Installation

Add this line to your application's Gemfile:

gem 'em-gpio'

And then execute:

$ bundle

Or install it yourself as:

$ gem install em-gpio

Usage

EM.run do
  pin = EM::Gpio::Pin.new(10, :direction => :in)

  pin.callback do
    # called when pin value changes
  end

  pin.callback :on => :high do
    # called on :low to :high transition
  end

  pin.callback :on => :low do
    # called on :high to :low transition
  end
end

TODO

1. SerialPort support
2. Example rack app
3. Find time for 1 and 2

em-gpio's Issues

eventmachine 1.0.1 dependency

em-gpio.gemspec has eventmachine 1.0.1 strict dependency