Example Android config

config.json

{
  "capabilities":
      [
        {
          "browserName": "android",
          "platform": "ANDROID",
          "seleniumProtocol": "WebDriver",
          "maxInstances": 1,
          "port": 8081
        }
      ],
  "configuration":
  {
    "maxSession": 6,
    "port": 5555,
    "register": true,
    "registerCycle": 5000
  }
}