1. Overview
  2. Getting started
  3. Wireless keyboard
  4. Volume control
  5. Connecting an external device
  6. Accessories & components
  7. Troubleshooting
  8. (Advanced) Additional display inputs

Applies to: Our custom configuration of the Dell C7017T 70" Interactive Display, ASUS CS10 Chromebit, Peerless SR598 Flat Panel Cart, and associated accessories. It may also apply to other displays that have been retrofit with the same capabilities.


This documentation will cover basic usage and functionality of our SY16-17 classroom display system. If you have access to a display, congratulations!

Our goals this year were:

  • It must be mobile and facilitate project based learning, collaboration, and a wide variety of teaching styles.
  • It must have touch input compatible with as many device types as possible, with Chrome OS compatibility as a requirement, and must not require any specific software.
  • It should have its own embedded computer to facilitate screen sharing applications and lessen the requirement of a staff device to drive a display.
  • It should allow for easy display and input switching between the embedded computer and external devices attached via HDMI & USB.
  • It should achieve all of these goals and be as easy to use as possible.

No vendor provided a product that fit our needs, so we developed our own custom system for our newest generation of classroom displays. This newest generation requires only a single power cable, it moves around wherever it's needed, the display works with nearly any kind of computer and without any special software. It has it's own embedded computer with WiFi that automatically turns on with the display, and allows for easily switching to other connected devices with a single button. We believe we have achieved our goals to the extent that current technologies will allow. We welcome your feedback on improvements we can make for our next revision. 

Getting Started

Be sure to lock the wheels after you have placed the display cart in a location harmonious with its surroundings.

Release the power cable from the cord wrap behind the display to begin your journey.

Plug the power cable's pokey bit into an available outlet to start the flow of magic pixies. Be sure to use a circuit that is not overloaded with other appliances or devices.

Wait a few moments as the display springs to life and the embedded Chromebit boots. You're ready to rock and roll when you see the Chrome OS logon screen.

Tap the screen to gently rouse the embedded Chromebit from its slumber after it's been left idle.

Wireless Keyboard

Collect the keyboard from its nest on the back of the display.

Bring the keyboard to attention by flipping the switch on the top edge. Green means go. To conserve battery power, turn the keyboard off when you are finished using it.

Peck on the wireless keyboard to produce pleasant paragraphs of priceless poetry. The keyboard input follows the active display.

A keyboard haiku:

please take care of me
carefully tucked in at night
feed me batteries

Volume Control

To crank your volume to 11, there are multiple independent volume controls to check. First verify the application or video player volume. The location can vary greatly, but an example from YouTube is provided.

Continue your journey by verifying the operating system's volume and adjust as necessary. This included example is Chrome OS.

In the final act, check the display's volume. Press any of the menu buttons along the bottom of the display, then tap the speaker icon and raise the volume as desired with the touch screen.

Connecting an External Device

Find the external device cables hiding behind the display and unwrap them enough to connect to your device.

Locate HDMI and USB ports within close proximity on a side of your device and plug them in. If you don't need touch or keyboard input, say for video & audio only, the USB connection is not required.

Press the KVM switch button located at the bottom left of the display. You should be able to easily find and press the button without looking.

Psst. KVM is an acronym for "keyboard/video/mouse."

KVM Switch Input Indicator (Bonus): On the KVM switch, there is an LED that shows the active input. It may be helpful to know that input one connected to the external device cables and input two is connected to the Chromebit.

Accessories & Components

Remote: The remote and base are both magnetic and can be attached to either side of the display. Be aware that the remote must be accurately pointed at the sensor on the left of the display to send button presses properly. This can take more skill and experimentation than expected to perfect.

Stylus: The included styluses are not special. They're just a fancy branded plastic stick that glides smoothly across the screen. However, take great care that you don't scratch the screen using anything else. Let us help if you're unsure. The pens and base are also magnetically mounted.

External Device Cables: On the back left of the display there is a pair of cables, HDMI and USB. Using these you can plug in other external devices, such as a teacher or student computer.

Chromebit: This little bugger is where most of the magic happens. It has the guts of a Chromebook, without the screen. It has magic pixies (power) input on the left side, and the KVM provides USB in the top and HDMI from the bottom.

KVM Switch: The KVM switch is the secret sauce of the system. Usually a product reserved for data center servers, this one switches not only the HDMI input, but also the required USB connection for the display's touch input and also the wireless keyboard to the active device.

USB Hub: The USB hub is upstream from the KVM switch and allows us to share the USB connection from both the display's touch input and the wireless keyboard simultaneously.


The best way to avoid issues is to avoid modifying the system in any way! If you are having problems, please make sure the connections are secure, but do not disconnect or move cables to different ports! Submit a Help Desk ticket if you are having issues.

Common Issues

  1. Embedded Chromebit not displaying

    1. Tap on the screen to wake up the Chromebit.

    2. Press the KVM switch button to change inputs from input #1 then back to input #2.

Additional Display Inputs (Advanced)

If you really know what you're doing, there are two additional HDMI inputs that can be used to attach additional external devices than the one provided cable will allow. However, we recommend using the included cable pair where possible. Extra HDMI cables are not provided with the display but can be provided if requested via the Help Desk.

The display will automatically switch to the new input, when connected, and should revert to pre existing connections (e.g. KVM switch) when disconnected.

If you need to manually switch the display input, press a menu button, then tap on the display menu. From here, you can use the Input Source menu to manually switch between inputs. By default, the KVM switch is plugged into HDMI 1 on the display.

(See below)


Visit the Staff Portal and look over the "Interactive Classroom Tools for Chrome" category. These are just a few sites/services that make great use of any display and work on almost any type of device, including Chromebooks.


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