This is the IRremote library for the Arduino. To install on Arduino 0018 or later, move this directory to: arduino-00nn/libraries/IRremote For earlier releases, install into arduino-00nn/hardware/libraries/IRremote I.e. after installation you should have files such as: arduino-00nn/hardware/libraries/IRremote/IRremote.cpp If you're downloading from github (http://github.com/shirriff/Arduino-IRremote), click on the Download Source button in the upper right and get a zip file. Unzip it, copy and rename the directory shirriff-Arduino-IRremote-nnn to arduino-00nn/libraries/IRremote. Your directory structure should have arduino-00nn/libraries/IRremote/IRremote.cpp, etc. For details see the Wiki on github or the blog post http://arcfn.com/2009/08/multi-protocol-infrared-remote-library.html Copyright 2009-2010 Ken Shirriff