class ArduinoBeta < Cask version '1.5.7-r2' sha256 'd58697e5b5b8877c5072e43f7f1c5a0fde3a917f864a231ef173b019774a552a' url 'http://downloads.arduino.cc/arduino-1.5.7-macosx-java7-r2.zip' homepage 'http://arduino.cc/' link 'Arduino.app' end