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Contents
require 'artoo/drivers/driver'
module Artoo
module Drivers
# The LED driver behaviors
class Led < Driver
COMMANDS = [:on, :off, :toggle,
:brightness,
:on?, :off?].freeze
def initialize(params = {})
@is_on = false
super
end
# @return [Boolean] True if on
def on?
@is_on
end
# @return [Boolean] True if off
def off?
(not on?)
end
# Sets led to level HIGH
def on
change_state(pin, :high)
@is_on = true
true
end
# Sets led to level LOW
def off
change_state(pin, :low)
@is_on = false
true
end
# Toggle status
# @example on > off, off > on
def toggle
on? ? off : on
end
# Change brightness level
# @param [Integer] level
def brightness(level=0)
connection.pwm_write(pin, level)
end
private
def change_state(pin, level)
connection.digital_write(pin, level)
end
end
end
end
Version data entries
8 entries across 8 versions & 2 rubygems