Blinking an LED using ruby

gistfile1.txt

require 'artoo'

connection :arduino, adaptor: :firmata, port: '/dev/tty.usbmodem411'

#connection :firmata, :adaptor => :firmata, :port => '127.0.0.1:8023'
device :board, :driver => :device_info
device :led, :driver => :led, :pin => 13

work do
  puts "Firmware name: #{board.firmware_name}"
  puts "Firmata version: #{board.version}"

  every 1.second do
    led.on? ? led.off : led.on
  end
end

I get the exact same behaviour

@avermeulen based on a suggestion on another thread I managed to get it working by switching from the port from '/dev/tty.usbmodem411' to '/dev/cu.usbmodem1411'