Tutorial 8a - using someone else's keybrd extension library
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The keybrd library contains the classes needed for creating most keyboard firmware.
keybrd extension libraries extend the keyboard library with custom classes.

keybrd extension library names are prefixed by "keybrd_" and are listed in:
* [Arduino Playground](http://playground.arduino.cc/Main/InterfacingWithHardware#keyb) > find "keybrd"
* Arduino Library-Manager (Arduino IDE > Sketch > Include Library > Manage Libraries > Filter your search: keybrd)

Instructions for installing a library on Arduino IDE are at:
    http://www.arduino.cc/en/Guide/Libraries

Once a keybrd extension library is installed, it's classes can be included in your sketch.

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<a rel="license" href="https://creativecommons.org/licenses/by/4.0/"><img alt="Creative Commons License" style="border-width:0" src="https://licensebuttons.net/l/by/4.0/88x31.png" /></a><br /><span xmlns:dct="http://purl.org/dc/terms/" property="dct:title">keybrd tutorial</span> by <a xmlns:cc="https://creativecommons.org/ns" href="https://github.com/wolfv6/keybrd" property="cc:attributionName" rel="cc:attributionURL">Wolfram Volpi</a> is licensed under a <a rel="license" href="https://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution 4.0 International License</a>.<br />Permissions beyond the scope of this license may be available at <a xmlns:cc="https://creativecommons.org/ns" href="https://github.com/wolfv6/keybrd/issues/new" rel="cc:morePermissions">https://github.com/wolfv6/keybrd/issues/new</a>.