Wireless Display of iPad on HDMI Device

by Patrick Kammermeyer on May 21, 2012

iPad on HDMI Devices

It appears that iPad use is up on Cal Poly’s campus. I’m seeing them show up at meetings more and more. The CTL’s most recent iPad workshop had over 40 people in attendance, making it one of our better attended workshops of the year.

One of the most common questions we hear from faculty with regard to the iPad is “How can they be used in an educational setting?” There are many approaches to answering that question, including how to create and deliver rich content on the iPad, how to teach in the classroom using an iPad, and even how to use the iPad as a backend tool to help facilitate our interactions with colleagues.

In this post, I will cover a new discovery for me: the capability to use an iPad2 (or newer) along with an Apple TV ($99) to deliver content wirelessly to an HDTV or HDMI-capable projector.

This particular capability is interesting to me because here in the Library, many of our study rooms and meeting rooms are equipped with HDTVs. I’m also seeing a trend to begin equipping conference rooms with either HDTVs or HDMI-capable projectors. It may be only a matter of time before classrooms commonly have HDMI-capable display systems.

Here at the CTL, many of us come to our meetings with our iPads. There have been many occasions when one of us has referenced some content on our iPad and had to awkwardly pass around the iPad to share it. There have been other times when we connected to an HDMI projector via cable. This works well if only one person is wishing to present. However, if more than one person is presenting, the plugging and unplugging of cables is necessary for each presenter. With this new method, an Apple TV connected to our portable projector will allow any one of us to wirelessly display content to everyone at once.

Here’s how it’s done.

Setup Apple TV for AirPlay

AirPlay Settings

The first thing to do is to set up the Apple TV for AirPlay, Apple’s wireless streaming technology. To do this, connect your AppleTV to an HDTV (or HDMI projector) via the HDMI cable. Once in the Apple TV menu system, navigate to the Settings menu. Then navigate down to the AirPlay selection. There you can toggle on or off the AirPlay service, and you can set a password for connecting a device to your Apple TV. (Setting a password is highly recommended.)

Register Apple TV with Network Admin

Get Wi-Fi Address for Network Admin

In order to use the campus wireless network for AirPlay, you will need to request that your Apple TV is registered. Network Admin needs only the Wi-Fi Address number for your Apple TV. To find this number, select Settings then General then Network. Near the bottom of this screen is the Wi-Fi Address.

Network Admin will then give the name and login for the campus AirPlay network. Set your Apple TV to join that network.

Setup the iPad for AirPlay

Select Other...

To set up the iPad for AirPlay, first join the campus AirPlay network. Network Admin will supply you with the name and login for this network. Join that network by going to Wi-Fi under Settings and select Other. In this window, enter the name of the campus AirPlay network given to you by Network Admin.

The last step is to turn on AirPlay on your iPad. To do this, double-click the Home button on your iPad (the physical button at the bottom of your iPad). This will bring up a list of running apps along the bottom of your screen. Scroll to the far left of this list to reveal the AirPlay icon (see screen shot).

AirPlay and mirroring

Click on the AirPlay icon (in red circle) and select your Apple TV from the list. Below your listed Apple TV is the mirroring toggle. Turn that on, and your iPad will begin displaying on your HDMI device.

In the future, now that the setup is complete, you can mirror your iPad by simply turning on AirPlay and toggling on mirroring.


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