<p>The <strong>e-puck</strong> is a small (7 cm) <a title="Differential wheeled robot" href="https://en.wikipedia.org/wiki/Differential_wheeled_robot">differential wheeled</a> <a title="Mobile robot" href="https://en.wikipedia.org/wiki/Mobile_robot">mobile robot</a>. It was originally designed for micro-engineering education by <a class="new" title="Michael Bonani (page does not exist)" href="https://en.wikipedia.org/w/index.php?title=Michael_Bonani&action=edit&redlink=1">Michael Bonani</a> and <a title="Francesco Mondada" href="https://en.wikipedia.org/wiki/Francesco_Mondada">Francesco Mondada</a> at the ASL laboratory of Prof. <a title="Roland Siegwart" href="https://en.wikipedia.org/wiki/Roland_Siegwart">Roland Siegwart</a> at <a class="mw-redirect" title="EPFL" href="https://en.wikipedia.org/wiki/EPFL">EPFL</a> (<a title="Lausanne" href="https://en.wikipedia.org/wiki/Lausanne">Lausanne</a>, <a title="Switzerland" href="https://en.wikipedia.org/wiki/Switzerland">Switzerland</a>). The e-puck is <a class="mw-redirect" title="Open hardware" href="https://en.wikipedia.org/wiki/Open_hardware">open hardware</a> and its onboard software is <a class="mw-redirect" title="Open source" href="https://en.wikipedia.org/wiki/Open_source">open source</a>, and is built<sup id="cite_ref-producer_1-0" class="reference"><a href="https://en.wikipedia.org/wiki/E-puck_mobile_robot#cite_note-producer-1">[1]</a></sup> and sold<sup id="cite_ref-resellers_2-0" class="reference"><a href="https://en.wikipedia.org/wiki/E-puck_mobile_robot#cite_note-resellers-2">[2]</a></sup> by several companies.<a class="image" href="https://en.wikipedia.org/wiki/File:E-puck-mobile-robot-photo.jpg"><img class="thumbimage" src="https://upload.wikimedia.org/wikipedia/commons/thumb/4/46/E-puck-mobile-robot-photo.jpg/220px-E-puck-mobile-robot-photo.jpg" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/46/E-puck-mobile-robot-photo.jpg/330px-E-puck-mobile-robot-photo.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/46/E-puck-mobile-robot-photo.jpg/440px-E-puck-mobile-robot-photo.jpg 2x" alt="" width="220" height="220" data-file-width="912" data-file-height="912" /></a></p>
<p>https://en.wikipedia.org/wiki/E-puck_mobile_robot</p>