require 'arduino_firmata'

arduino = ArduinoFirmata.connect  # use default arduino
arduino = ArduinoFirmata.connect '/dev/tty.usb-device-name'
arduino = ArduinoFirmata.connect '/dev/tty.usb-device-name', :bps => 57600
arduino = ArduinoFirmata.connect '/dev/tty.usb-device-name', :nonblock_io => true
arduino = ArduinoFirmata.connect '/dev/tty.usb-device-name', :eventmachine => true

puts "firmata version #{arduino.version}"

arduino.close

arduino.digital_write 13, true
arduino.digital_write 13, false

arduino.pin_mode 7, ArduinoFirmata::INPUT
puts arduino.digital_read 7  # => true/false

## regist event
arduino.on :digital_read do |pin, status|
  if pin == 7
    puts "digital pin #{pin} changed : #{status}"
  end
end

0.upto(255) do |i|
  arduino.analog_write 11, i
  sleep 0.01
end

puts arduino.analog_read 0  # => 0 ~ 1023

## regist event
arduino.on :analog_read do |pin, value|
  if pin == 0
    puts "analog pin #{pin} changed : #{value}"
  end
end

loop do
  angle = rand(180)
  arduino.servo_write 11, angle
  sleep 1
end

arduino.sysex 0x01, [13, 5, 2]  # command, data_array

arduino.on :sysex do |command, data|
  puts "command : #{command}"
  puts "data    : #{data.inspect}"
end

ArduinoFirmata.connect do
  puts "firmata version #{version}"

  30.times do
    an = analog_read 0
    analog_write 11, an
    sleep 0.01
  end
end