sersock

Elixir Serial Port to Socket exporter.

Installation and Usage

1. Add sersock to your mix.exs dependency list:

  def deps do
    [{:sersock, "~> 0.1.2"}]
  end

1. Manually start and stop individual instances.

  tty = case :os.type() do
      {:unix, :darwin} -> "cu.usbserial-FTYHQD9MA"
      {:unix, :linux} -> "ttyUSB0"
      {:win32, :nt} -> "COM12"
  end

  {:ok, pid} = Sersock.start_link([device: tty, port: 5000])
  {:ok, %{ip: {0,0,0,0}, port: 5000}} = Sersock.endpoint(pid)

  :ok = Sersock.stop(pid)

1. Connect your serial port to some device and talk to it with netcat. Prepend with rlwrap for command history.

  #Talking to a KTA-223
  nc localhost 5000
  @00 IS 0
  #00 0

1. Run the tests

  #Serial port names are hard coded in test_helper.exs
  #TCP ports are hard coded in sersock_test.exs
  #A couple of serial ports are required
  mix test

Development

• Testing requires two null modem serial ports configured in test/test_helper.exs

Windows

Install Visual C++ 2015 Build Tools by one of the following methods:

• Download and install visualcppbuildtools_full.exe
• Thru Chocolateychoco install VisualCppBuildTools.

From the Windows run command launch cmd /K c:\Users\samuel\Documents\github\sersock\setenv.bat adjusting your code location accordingly.

Ubuntu

Give yourself access to serial ports with sudo gpasswd -s samuel dialout. Follow the official Elixir installation instructions and install build-essential erlang-dev as well.

Roadmap

Future

• Pass test serial port thru environment variables

0.5.4

• Updated to sniff 0.1.4

0.1.1

• test runs client sockets in line mode to avoid packet fragmentation in Linux
• eaddrinuse error after reloading iex -S mixreuseaddr: true in :gen_tcp.listen seems to fix it
• Leave only the raw serial export mode

0.1.0

• Release not supported any more