serialport

Node.js package to access serial ports. Linux, OSX and Windows. Welcome your robotic JavaScript overlords. Better yet, program them!

board-io

Provides a standard interface to boards capable of IO (e.g. Arduinos, Maestros, Raspberry Pis, etc) and their firmware

node-pixel

Library for controlling addressable LEDs (such as NeoPixels) from firmata or Johnny Five.