Class: Artoo::Drivers::Button
- Defined in:
- lib/artoo/drivers/button.rb
Overview
Button driver behaviors for Firmata
Constant Summary collapse
- COMMANDS =
[:is_pressed?].freeze
- DOWN =
1
- UP =
0
Instance Attribute Summary
Attributes inherited from Driver
Instance Method Summary collapse
-
#is_pressed? ⇒ Boolean
True if pressed.
-
#start_driver ⇒ Object
Sets values to read and write from button and starts driver.
-
#update(value) ⇒ Object
Publishes events according to the button feedback.
Methods inherited from Driver
#command, #commands, #connection, #event_topic_name, #initialize, #interval, #known_command?, #method_missing, #pin
Constructor Details
This class inherits a constructor from Artoo::Drivers::Driver
Dynamic Method Handling
This class handles dynamic methods through the method_missing method in the class Artoo::Drivers::Driver
Instance Method Details
#is_pressed? ⇒ Boolean
Returns True if pressed.
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# File 'lib/artoo/drivers/button.rb', line 13 def is_pressed? (@is_pressed ||= false) == true end |
#start_driver ⇒ Object
Sets values to read and write from button and starts driver
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# File 'lib/artoo/drivers/button.rb', line 19 def start_driver listener = ->(value) { update(value) } connection.on("digital-read-#{pin}", listener) connection.set_pin_mode(pin, Firmata::Board::INPUT) connection.toggle_pin_reporting(pin) every(interval) do connection.read_and_process end super end |
#update(value) ⇒ Object
Publishes events according to the button feedback
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# File 'lib/artoo/drivers/button.rb', line 33 def update(value) if value == DOWN @is_pressed = true publish(event_topic_name("update"), "push", value) publish(event_topic_name("push"), value) else @is_pressed = false publish(event_topic_name("update"), "release", value) publish(event_topic_name("release"), value) end end |