phpRPC + Ruby + Arduino = 远程控制

phpRPC + Ruby + Arduino = 遠程控制LED開關(?)
嗯，我知道這是個很無聊的Sample :P
關於phpRPC與Arduino請自行Google
觀看此demo之前請先安裝另外一篇所提到的serialport
與另外一個Gem
套件：phprpc
在這個範例中，我透過PHPRPC建立一個Server，並且透過RPC呼叫一些method去控制USB Serial Port
而在實現這個demo時，我們必須建立Server&Client兩端
底下是Source code:
複製內容到剪貼板
代碼:
# Server
#!/usr/bin/env ruby
require 'rubygems'
require 'serialport'
require 'phprpc'
class Cloud
  def initialize
    @@sp ||= SerialPort.new("/dev/cu.usb
serial-A600bMiv", {:baudrate => 9600})
  end
  
  def write(color)
    @@sp.write("##{color}")
  end
  
  def close
    @@sp.close
  end
  
end
def randomColor
  r = rand(256).to_s(16)
  g = rand(256).to_s(16)
  b = rand(256).to_s(16)
  
  r = "0" + r if r.size == 1
  g = "0" + g if g.size == 1
  b = "0" + b if b.size == 1
  
  color = r+b+g
  cloud = Cloud.new
  cloud.write(color)
  "Color #{color} has been set."
end
def setColor(color)
  cloud = Cloud.new
  cloud.write(color)
  
  "Color #{color} has been set."
end
def setRGBColor(r,g,b)
  cloud = Cloud.new
  cloud.write((r+g+b).to_s)
  
  "Color #{(r+g+b)} has been set."
end
methods = %w"randomColor setColor setRGBColor"
server = PHPRPC::Server.new
server.debug = true
server.add(methods)
server.start
at_exit{
  cloud.c