Adjustable serial baud rate

[wkoffel]

The connect_to_serial function takes a default baud rate of 57,600. Some adapters seem to respect a param to connect with a different rate, but the one I'm using, artoo-roomba does not. In addition to making each adapter more configurable in this respect, I'd love to see a general option on the connection that sets the baudrate. Something like

connection :roomba, :adaptor => :roomba, :port => '/dev/tty.usbserial-DA017LV0', :baudrate => 115200

I don't have the cycles at the moment to make a pull request, but if I get deeper into artoo, I'll try to get one in here. If someone beats me to it in the meantime, even better!

[konyu]

@wkoffel I forked this gem and I can connect Roomba 780 with default baud rate of 115200. but That forked gem can't set default baud rate adapter setting line for now.
Please, try it.
https://github.com/konyu/artoo-roomba

thank you