Class: Switchy

Inherits:
Object
  • Object
show all
Defined in:
lib/switchy.rb

Defined Under Namespace

Modules: PINS

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(modem = '/dev/tty.usbmodem12341', baud = 38400) ⇒ Switchy

Returns a new instance of Switchy.



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# File 'lib/switchy.rb', line 92

def initialize(modem = '/dev/tty.usbmodem12341', baud=38400)
  @borked = !File.exists?(modem)
  puts "**** Could not find Switchy device on #{modem}" if borked?
  @modem, @baud = modem, baud
  connect
end

Instance Attribute Details

#baud ⇒ Object

Returns the value of attribute baud.



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# File 'lib/switchy.rb', line 88

def baud
  @baud
end

#borked ⇒ Object

true when the device was not found at startup. Makes switchy-inclusive apps noncrashy when they find themselves unexpectedly switchy-excluded



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# File 'lib/switchy.rb', line 89

def borked
  @borked
end

#modem ⇒ Object

Returns the value of attribute modem.



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# File 'lib/switchy.rb', line 88

def modem
  @modem
end

Instance Method Details

#borked? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/switchy.rb', line 90

def borked?; @borked; end

#connect ⇒ Object 



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# File 'lib/switchy.rb', line 99

def connect
  return if borked?
  @sp = SerialPort.new @modem, @baud
end

#disconnect ⇒ Object 



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# File 'lib/switchy.rb', line 104

def disconnect
  return if borked?
  # ???
end

#light1=(v) ⇒ Object 



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# File 'lib/switchy.rb', line 122

def light1=(v)
  return if borked?
  set_light 1, v
end

#light2=(v) ⇒ Object 



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# File 'lib/switchy.rb', line 127

def light2=(v)
  return if borked?
  set_light 2, v
end

#light3=(v) ⇒ Object 



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# File 'lib/switchy.rb', line 132

def light3=(v)
  return if borked?
  set_light 3, v
end

#light4=(v) ⇒ Object 



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# File 'lib/switchy.rb', line 137

def light4=(v)
  return if borked?
  set_light 4, v
end

#set_light(l, v) ⇒ Object 



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# File 'lib/switchy.rb', line 116

def set_light(l, v)
  return if borked?
  cmd = "C#{l+3}=#{v}\r\n"
  @sp.write cmd
end

#set_pin(p, v) ⇒ Object

Set pin “b4”, 1 # turn on pin b4



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# File 'lib/switchy.rb', line 110

def set_pin(p, v)
  return if borked?
  cmd = "#{p.upcase}=#{v}\r\n"
  @sp.write cmd
end