Interactive floor projection

Open Sesame Challenge The device includes a LED projector and a proximity sensor. OEM LED optical engines have a low price and small size For example 2024L -3 Wt, 960*540 - 65 $ (http://www.aaxatech.com/products/oem/lcos_engines.php). The projector can perform a variety of functions: class schedule in this room; messages for all; messages for specific person: input pin; weather, news, interactive games.