== RB232
A simple serial port library for Ruby.
Licensed under the MIT license (See COPYING file for details)
Author: James Smith (james@floppy.org.uk / http://www.floppy.org.uk)
Homepage: http://github.com/Floppy/rb232
Documentation: http://docs.github.com/Floppy/rb232
== ABOUT
This library is a simple serial port library for Ruby.
You may ask, why not just use ruby-serialport? Mainly because the GPL license
it is under is too restrictive for my purposes. This code is under the MIT
license, so you can do anything you like with it.
== INSTALLATION
1) Enable gems from github, if you haven't already done so (rubygems >= 1.2):
> sudo gem sources -a http://gems.github.com
2) Install gem
> sudo gem install Floppy-rb232
== STATUS
Currently you can read from a serial port, but not write back. The code is only
tested on Linux - other unixes *may* work, Mac OSX *might* be ok, but Windows
is right out for now. Watch this space for further developments!
== USAGE
The following code will read a 10-character string from the specified port,
using the default port settings (9600/8/n/1/no flow control)
@port = RB232::Port.new('/dev/ttyUSB0')
message = @port.read_string(10)
You can provide alternative settings when you create a new port:
RB232::Port.new('/dev/ttyS0', :baud_rate => 19200,
:data_bits => 7,
:parity => true,
:stop_bits => 2,
:hardware_flow_control => true)
See http://github.com/Floppy/rb232/tree/master/spec/port_spec.rb or RB232::Port
documentation for more details.
If you are using a simple text protocol over RS232, you can use the
RB232::TextProtocol class to help you out. It automatically monitors the port
and splits messages up by detecting separator characters. See
http://github.com/Floppy/rb232/tree/master/examples/listen.rb for an example of
how to use this class.