ダイソーのリモートシャッターを押すとLINEへメッセージを送るサンプル。rootで実行する必要あり

button_line_send.rb

require 'device_input'
require 'rest-client'
require 'json'

class LineBot
  TOKEN = "Channel Access Token"
  TO    = "送信先のID"

  def self.send(msg)
    headers = {
      "Content-Type"  => "application/json; charser=UTF-8",
      "Authorization" => "Bearer #{TOKEN}",
    }

    params = {
      to: TO,
      messages: [
        {
          type: "text",
          text: msg,
        }
      ]
    }

    RestClient.post "https://api.line.me/v2/bot/message/push", params.to_json, headers
  end
end

class Bluebutton
  attr_accessor :device

  def initialize name
    finded = Dir.glob("/sys/**/name").select do |file|
      File.read(file).downcase[name.downcase]
    end.first
    raise "Can't find device info '#{name}' in /sys/**/*" if finded.nil?

    @device = "/dev/" + Dir.glob("#{File.dirname(finded)}/**/uevent").map do |file|
      File.read(file).split("\n").select{|s| s['DEVNAME']}.compact.first
    end.compact.flatten.first.split("=")[1] rescue nil

    @msg = {"VolumeUp" => "iOSボタンを押したよ",
            "Enter" => "androidボタンを押したよ"}
    @long_msg = {"VolumeUp" => "iOSボタンを長く押したよ",
                 "Enter" => "androidボタンを長く押したよ"}

    puts "Device #{name} find at #{@device}"
  end

  def run
    File.open(@device, 'rb' ) do |input|
      puts "Connected"
      DeviceInput.read_loop(input) do |event|
        if event.type == 'EV_KEY'
          if event.value > 0
            key_down event
          else
            key_up event
          end
        end
      end
    end
  end

  def key_down event
    if @pressed.nil?
      @pressed = Time.now
      @code = event.code
      LineBot.send(@msg[@code])
      puts "push #{@code}"
    elsif @long.nil? && @pressed < (Time.now - 1)
      LineBot.send(@long_msg[@code])
      puts "long push #{@code}"
      @long = true
    end
  end

  def key_up event
    @long = nil
    @pressed = nil
    @code = nil
  end
end

device = "AB Shutter3"

puts "Try to find device #{device}..."
button = Bluebutton.new(device)
puts "Reading events from #{button.device}..."
button.run