Class: Subduino::ArdIO

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

Class Method Summary collapse

Class Method Details

.read(&proc) ⇒ Object

Read I/O

Starts a thread that loops fetching serial bytes. It’ll buffer it up until a \n or \r char are found. Feed it with a block to read the text.



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# File 'lib/subduino/ard_io.rb', line 23

def read(&proc)
  Log.info "[USB] Found Device...#{Arduino.find_usb}"
  Log.info "[USB] Starting Connect..." + sp.get_modem_params.map { |k,v| "#{k}: #{v}" }.join(" ")
  Log.info "[USB] Read Timeout #{sp.read_timeout}" # {sp.write_timeout}"

  if sp
  @iothread ||= Thread.new do
    # Thread.current.abort_on_exception = false
    icache = []
    loop do
      begin
        while char = sp.getc
          if !char.valid_encoding?
            bytes = char.bytes.to_a
            hexes = bytes.map { |b| b.to_s(16) }
            puts " - Bad char #{char} - (Hex: #{char.unpack('H')} | Byte(s) #{bytes} | Hexe(s) #{hexes}"
          elsif char !~ /\n|\r/
            # print char if Debug
            icache << char
          else
            data = icache.join(""); icache = []
            unless data.empty?
              Log.info "[IO  RX] #{data}"
              proc.call(data)
            end
          end
          # sleep 1
        end
      rescue => e
        Log.error "[USB] Error #{e}"
        Log.error e.backtrace.join("\n")
        stop!
        exit 1
      end
    end
  end
  end

end

.sp ⇒ Object

Serial Port

Direct access to the SerialPort instance.



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# File 'lib/subduino/ard_io.rb', line 11

def sp
  @sp ||= SerialPort.new(Arduino.find_usb, AppConfig[:bauds] || 57600) #, DATA_BITS, DATA_STOP, parity)
  # @sp.read_timeout = 10;# @sp.write_timeout = 10
end

.stop! ⇒ Object

Finish Him!



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# File 'lib/subduino/ard_io.rb', line 82

def stop!
  sp.close
  Thread.kill @iothread
  Log.info "[IO] K.I.A"
end

.write(msg) ⇒ Object

Write I/O

Prints bytes to the serial port. It’ll use subduino convention of \n to end the message. Use #sp to write directly to the port. ‘ArdIO.sp.puts (’hi’)‘



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# File 'lib/subduino/ard_io.rb', line 70

def write(msg)
  Log.info "[IO  TX] #{msg}"
  txt = msg.gsub("\r|\n", "")
 # txt += "\n" unless txt =~ /^\\n/
  puts "=> Sending #{txt.inspect}" if Debug
  sp.puts(msg)
end