{"id":2907,"date":"2013-10-18T16:18:49","date_gmt":"2013-10-18T15:18:49","guid":{"rendered":"https:\/\/copyright.lboro.ac.uk\/elearning\/?p=2620"},"modified":"2013-10-18T16:18:49","modified_gmt":"2013-10-18T15:18:49","slug":"miracasting-from-android-devices","status":"publish","type":"post","link":"https:\/\/blog.lboro.ac.uk\/teaching-learning\/2013\/10\/18\/miracasting-from-android-devices\/","title":{"rendered":"Miracasting from Android devices"},"content":{"rendered":"

Miracasting from Android devices<\/b><\/p>\n

In parallel with the Tablets in Teaching project, we have also been evaluating various Android devices as alternatives to Apple iPads.<\/p>\n

With the advent of Android 4.2, it has been possible to wirelessly project an Android screen onto an HDMI display.\u00a0 By this we mean that anything on the mobile device\u2019s display is replicated on the remote display.<\/p>\n

Whereas the Apple AirPlay solution requires access to an established network to function \u2013 with all the procedural problems that can entail \u2013 Miracasting sets up its own mini-network between the mobile device and the receiving dongle plugged into the remote display.\u00a0 This is more hassle-free than AirPlay and is independent of the podium PC in a lecture theatre \u2013 modern podiums have an HDMI input socket which can be used if you don\u2019t have direct access to the display\u2019s connections.<\/p>\n

We tested two source devices and two receivers.\u00a0 Both sources worked well with both displays and were able to display wirelessly whilst running live BBC iPlayer over WiFi.\u00a0 However, the phone\u2019s SIMs had to be turned off to force it to use WiFi, otherwise iPlayer slowed down to a crawl.<\/p>\n

We used the second source device to attempt to hi-jack the remote display.\u00a0 In no case did this succeed, so even if students have Miracast-equipped devices in the lecture, they may be able to see the receiver but not connect to it.<\/p>\n

We used a tablet and a smartphone, with each of the two receivers.<\/p>\n\n\n\n\n\n\n\n\n\n
<\/td>\n\n

Google Nexus 7<\/b><\/p>\n<\/td>\n

\n

Butterfly 920<\/b><\/p>\n<\/td>\n<\/tr>\n

\n

Android version<\/p>\n<\/td>\n

\n

4.3<\/p>\n<\/td>\n

\n

4.2.1<\/p>\n<\/td>\n<\/tr>\n

\n

Connectivity<\/p>\n<\/td>\n

\n

WiFi, Bluetooth<\/p>\n<\/td>\n

\n

WiFi, Bluetooth, 2 SIMs<\/p>\n<\/td>\n<\/tr>\n

\n

Native display<\/p>\n<\/td>\n

\n

7\u201d, 1920 x 1080 HD<\/p>\n<\/td>\n

\n

5\u201d, 1280 x 720<\/p>\n<\/td>\n<\/tr>\n

\n

Remote display 1<\/p>\n<\/td>\n

\n

22\u201d Iiyama HD widescreen monitor<\/p>\n<\/td>\n<\/tr>\n

\n

Remote display 2<\/p>\n<\/td>\n

\n

Podium HDMI connector to HD data projector<\/p>\n<\/td>\n<\/tr>\n

\n

Remote display 3<\/p>\n<\/td>\n

\n

42\u201d Brockington study pod HDTV<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

The two receivers were a Phone2tv dongle (eBay, \u00a332) and a Netgear Push2tv dongle (Amazon, \u00a360).\u00a0 In both cases a USB connection is needed to provide power to the receiver and both had extension cables so that the dongle did not need to be physically attached to the display.<\/p>\n

Of the two, the Phone2tv receiver was slightly quicker to set up but the Netgear was slightly better at buffering the incoming data stream, so played with fewer jerky interruptions.<\/p>\n

Both devices carry audio as well as video.<\/p>\n

\"podium_1\"<\/a><\/p>\n

 <\/p>\n

In use, the HDMI and USB connections are made and the Wireless Display settings used on the source device to initiate the connection.\u00a0 In the example shown, the Aux HDMI input has been selected to feed the graphics through to the data projector.\u00a0 The other sources \u2013 PC, Laptop, Visualizer and Blu-Ray player are still available and can be selected as usual.<\/p>\n

The wireless display link works up to at least 5 metres from the receiver, giving the presenter the freedom to move around and interact with the class.<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Miracasting from Android devices In parallel with the Tablets in Teaching project, we have also been evaluating various Android devices as alternatives to Apple iPads. With the advent of Android 4.2, it has been possible to wirelessly project an Android screen onto an HDMI display.\u00a0 By this we mean that anything on the mobile device\u2019sRead more<\/a><\/p>\n","protected":false},"author":24,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[88,96,112,114],"tags":[],"class_list":["post-2907","post","type-post","status-publish","format-standard","hentry","category-mobile","category-pedagogy","category-tablets","category-tools"],"_links":{"self":[{"href":"https:\/\/blog.lboro.ac.uk\/teaching-learning\/wp-json\/wp\/v2\/posts\/2907","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.lboro.ac.uk\/teaching-learning\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.lboro.ac.uk\/teaching-learning\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.lboro.ac.uk\/teaching-learning\/wp-json\/wp\/v2\/users\/24"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.lboro.ac.uk\/teaching-learning\/wp-json\/wp\/v2\/comments?post=2907"}],"version-history":[{"count":0,"href":"https:\/\/blog.lboro.ac.uk\/teaching-learning\/wp-json\/wp\/v2\/posts\/2907\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.lboro.ac.uk\/teaching-learning\/wp-json\/wp\/v2\/media?parent=2907"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.lboro.ac.uk\/teaching-learning\/wp-json\/wp\/v2\/categories?post=2907"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.lboro.ac.uk\/teaching-learning\/wp-json\/wp\/v2\/tags?post=2907"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}