Arduino the ruby_way

Austin Vance

arduinothe ruby way

Monday, November 5, 12


/austinbv

@austinbv


arduino.. what now?


arduino.. what now?


arduino.. what now?


arduino.. what now?


arduino.. what now?


arduino.. what now?


arduino.. what now?


arduino.. what now?


arduino.. what now?


arduino.. what now?


what can you do with it?


can’twhat can you do with it?


can’tWhat can you do with it?










the ide


the ide


the ide


Burn code

to the

arduino


• standalone• isolated• small


developed by Greg Borenstein

Ruby Arduino Development

RAD


http://urbanhonking.com/ideasfordozens

http://urbanhonking.com/ideasfordozens

Ruby

class Blinky < ArduinoSketch output_pin 13, :as => :led def loop blink led, 100 endend


Ruby compiles to C#include <WProgram.h>#include <SoftwareSerial.h>void loop();void setup();int main();int led();void loop();int _led = 13;int led() { return _led;}void setup() { pinMode(13, OUTPUT);}void blink(int pin, int ms) { digitalWrite( pin, HIGH ); delay( ms ); digitalWrite( pin, LOW ); delay( ms );}int main() { init(); setup(); for( ;; ) { loop(); } return 0;}void loop() { blink(led(), 100);}

class Blinky < ArduinoSketch output_pin 13, :as => :led def loop blink led, 100 endend


debuggingoutdated


Talk with

the

Arduino










• standalone• small


✓standalone• small


✓standalone✓small


isolation is not import



async


ecto/duinoThe Arduino listens for low-level

signals over a serial port, while we abstract all of the logic on the Node

side.“ ”


complex logic

and problems


small C++ library

complex logic

and problems


message passing


?Monday, November 5, 12

dino

introducing!


Goals• fully tested• easy to extend• great documentation• zero startup time• fun


beginning developmentand use what’s there

thank you duino && node.js


Asynchronous in a synchronous world


Event Machine


EM.run do board = RubyDuino::Board.new board.callback do board.send_message '0013001' do EM::add_periodic_timer 0.5 do board.send_message “0013#{blink}” end end endend



roll our own• developer control• specific to the gem• zero dependencies


How did it turn out?


class Board


==Monday, November 5, 12

♥Monday, November 5, 12

class TxRx



finds the arduino


injected into the board


oh the possibilities


don’t panic


module Components


class < BaseComponent


class Led


def initialize(options={}) super(options) set_pin_mode(:out) digital_write(Board::LOW) end

def on digital_write(Board::HIGH) end

def off digital_write(Board::LOW) end


board = Board.new(Dino::TxRx.new)led = Led.new(pin: 2, board: board) led.onsleep 2led.off


class Button


def initialize(options={}) self.board.add_digital_hardware(self) self.board.start_readend#...def update(data) case data when UP button_up when DOWN button_down endend



down = proc { led.on }up = proc { led.off } button.down(down)button.up(up)


class Sensor


def initialize(options={}) @data_callbacks = [] @board.add_analog_hardware(self) @board.start_readend def update(data) @data_callbacks.each do |callback| callback.call(data) endend


on_data = proc { |data| puts data} sensor .when_data_received(on_data)


class Stepper


def step_cc digital_write(Board::HIGH, pins[:dir]) digital_write(Board::HIGH, pins[:step]) digital_write(Board::LOW, pins[:step])end def step_cw digital_write(Board::LOW, pins[:dir]) digital_write(Board::HIGH, pins[:step]) digital_write(Board::LOW, pins[:step])end


1600.times do stepper.step_cc sleep 0.001end

1600.times do stepper.step_cw sleep 0.001end


and many more


and many more


and many more


and many more


and many more


Lets see it in action


use it with any ruby script

reporter = proc { if system('./build') green.on && red.off else green.off && red.on end} button.down(reporter)



initializer


sinatraboard = Board.new(Dino::TxRx.new)cannon = Led.new(pin: 2, board: board)

put ‘/launch‘ docannon.on

end


/austinbv/dino

@austinbv

Thank You!


Date post:	14-May-2015
Category:	Technology
Upload:	austinbv
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Arduino the ruby_way

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