This is a very simple framework to create small frontends in a webserver

The Twenty-First Century Amateur Radio Project

Rain8net irrigation controllers are serial port RS-232 devices for remote control of irrigation zones. This gem provides a ruby interface to control them.

A gem providing access to Rapiro with SerialPort.

'rbbit' is a Class library and WebSocket server to use 'micro:bit'

Simple buspirate ruby interface

rdm6300 provides a simple interface for reading 125kHz RFID tags over an RS-232 serial port using the RDM6300 module

A RepRap driver and GCode analyzer written in Ruby.

RR3036 RFID (ISO/IEC 15693, ISO/IEC 14443A+B) connector written in Ruby.

Communicate with a MakerBot 3D Printer

Rustle is a gem that allows you to control an individually-addressable RGB LED strip via Ruby (with an Arduino acting as a middleman for PWM controls).

A lighter XBee S1 and S2 library for ruby

A simple gem to interact with SDS011 sensors via serial/USB

Parse and save incoming data to storage, default mongodb

This can interface a lot of different usb-modems and serial modems

This can interface a lot of different usb-modems

Fetches, and converts GPS coordinates using the SerialPort gem.

This gem can be used with the mini thermal printer, connected via the TX+RX pins on the Raspberry Pi

Library for controlling Yamaha A/V receivers and Sonance Sonamp amplifiers via the serial port

Terminal app for smart factory.