Special Words User Guide

7. Adaptive Switches

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Options for Using Switches

All of the activities in Special Words can be controlled using switch access scanning, with 1, 2 or 3 switches connected to the iPad, iPhone or iPod touch via a Bluetooth switch interface.

Alternatively, USB switches can be connected to the iPad's charging port via Apple's iPad Camera Kit (although you may need to connect via a powered USB hub).

  • Using the support provided by Special Words

    This provides simple switch access within each activity, requiring very few presses.

    It is designed for where the switch user (typically a child) will control the activity, but another person (usually an adult) will support the user by starting the app and selecting the activity using the touch screen.

  • Using the support built into iOS

    Apple's more general switch support allows full control of many apps, and the ability to access the home screen and to switch between apps, etc.

    This option requires more presses, and is generally suited to adult users with no intellectual disability.

iOS built-in support is enabled in the iPad or iPhone's Settings, under General > Accessibility > Switch Control.

Note that you must turn this off to make use of the switch facilities provided by Special Words.

Video: Using Special Words with Switches

Watch the video now
Colin explains how to set up and use.
  • One Switch

    Press to start automatic scanning, press again to select.

  • Two Switches

    Press first switch to scan manually, press second to select.

  • Three Switches

    As with two switches, plus press third switch to move to next page.

The rest of this chapter describes the first of the two options above. To use this, firstly ensure that Switch Control in the Settings app is turned OFF. If you wish to use the second option, there is a blog by Jane Farrall with videos that you may find helpful.

To make use of switches, if you are using Bluetooth, you need to have already enabled Bluetooth on your Apple device, and have paired it with the switch interface or Bluetooth-enabled switch. With one or two switches, the first must be configured to act as a space key or the sequence of two keys ~1, and the second switch (if used) to act as an enter key or the sequence of two keys ~3. With three switches, the first must act as space, the second as enter, and the third as either ~1 or ~3.

It is also possible to simulate the use of switches, using an external keyboard, as described in Chapter 8. As the app also supports using external keyboards and switches together at the same time, this provides a way for the adult to model the use of switches for the child, in a dual-control manner.

Before proceeding further, you must also specify the number of switches you are going to use in the settings for Special Words: from the Word List, tap the action button at the top right and then the Settings button at the top right. You will see a view similar to that shown on the right. Change the number of switches from 0 to 1, 2 or 3, as appropriate (beside the bottom red arrow in the screenshot).

Special Words offers three different control modes:

If you want to make it possible for the switch user to advance from one page in an activity to the next without assistance, when using 1 or 2 switches, change the Advancing to Next Page setting to Automatic, as shown next to the middle red arrow opposite.

We have tested Special Words using the APPlicator Bluetooth switch interface, Smoothie 75 wired switches and iSwitch Bluetooth switch, all manufactured by Pretorian Technologies Ltd. Other switches and interfaces should also work provided they emulate a Bluetooth or USB keyboard with space and enter and/or ~1 and ~3 keys.

If you have any difficulty getting your switches to work, check whether they generate any input with other apps on your device, e.g. Notes, Pages or Safari. If the switches are connected and configured correctly, then you should be able to use them to input space and enter or ~1 and ~3 key-presses in these apps, without the on-screen keyboard appearing. If these work, double-check that you have configured the appropriate number of switches in the Settings for Special Words.

If you have problems caused by switches unintentionally being pressed multiple times or being held down, you can alleviate this by adjusting the options in Settings app > General > Accessibility > Keyboard > Key Repeat (available in iOS 9 and later).

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