Alphasign is handles communication with LED signs using the Alpha Sign Protocol. These include Alpha signs and Betabrite signs by Adaptive Micro Systems, maybe others too, YMMV. This release handles writing "text files" and "string" files to the sign over rs232 serial port, using a fixed memory ...

Only supports the serial interface as ambientdevices' service no longer exists

Simple gem to wrap the serial port control for ruby projects controlling an Arduino with LEDs attached

arduino_mega

Bertha talks to the Arduino so you don't have to.

An easiest way to mount a GSM modem to send and to receive sms message

Control a strip of RGB LEDs from http://blinkinlabs.com/blinkytape/

Other hardware (e.g., arduino) may be supported with minor firmware modifications

A Ruby interface for blinky-tape-test-status

Monitors the build status of projects on http://codefumes.com and sends out notifications via a USB-connected ZigBee wireless chip.

Automate tests for embedded system based on a specific configuration.

A way to interface with the celadon RCV-3000 receiver

Adds serial port support to Celluloid::IO

Comunication of with GSM modem

Read and store log output from the Grin Cycle Analyst and optionally Phaserunner

Arduino part of Domotics

douban.fm.arduino

Arduino Prototyping API for Ruby

This gem uses a serial port to communicate with dumb terminal hardware. Such as a VFD Pole Display.

EventMachine compatible serialport library