Selendroid for API<17

I can automate my app on recent Android phone, with Appium and ruby, but when I try with a Galaxy S2, I have the error message “Android devices must be of API level 17 or higher. Please change your device to Selendroid or upgrade Android on your device. (Selenium::WebDriver::Error::WebDriverError)”

I don’t know know how to change my device to Selendroid.
Right I’ve got in Ruby:

	capabilities =
      	'appPackage'=> 'com.myapp.demo',
      	'appActivity'=> '.MainActivity',
		'platformName' => 'Android',
		'deviceName' => 'Galaxy S2',
		'device' => 'Galaxy S2',
	server_url = ''
	@driver = Selenium::WebDriver.for(:remote, desired_capabilities: capabilities, url: server_url)
	@browser = @driver
	@browser.driver.manage.timeouts.implicit_wait = 30

How can I put this to Selendroid ?
Thanks a lot

set automationName to be selendroid. See the example code on github.

Thanks, I will try !