Switches are one way students can interact with items, activities, and other technology when traditional methods aren't accessible.
A switch is an assistive technology tool that connects to another device so that a person can access it using the motor skills they have.
In this video, I will walk through how switches work and how switch interfaces expand what a switch can control, allowing students to interact with a wider range of tools throughout their school day. A switch is a simple input device. When activated by pressing, tapping, or other access method, it sends a signal to another device. What happens next depends on what the switch is connected to.
Sometimes, a switch is connected directly to an item. For example, with a switch adapted toy, the adaptation has already been built in to make it switch accessible. When the switch is activated, it makes the toy work.
Other times, the item a student needs to control isn't already adapted for switch access. That's when a switch interface is used.
A switch interface connects the switch to a more complex electronic device, allowing the switch to control it. Switch interfaces allow switch activations to control devices such as appliances, computers, or tablets. Let's look at a few common uses of switch interfaces, organized by what the student needs to access.
When the goal is to allow a student to control items in their physical environment like lights, fans, or small appliances, an environmental access switch interface can help.
This device allows a switch to turn a corded appliance on and off and offers several control options to match a student's needs.
For instance, direct control only keeps the appliance on as long as the switch is held down.
With latch control, one switch activation turns the appliance on, and the next activation turns it off.
With timed control, I can set the number of seconds or minutes for the appliance to stay on after the switch activation.
The count feature tracks the number of switch activations the student makes, which supports instructional planning and data collection on a student's switch use.
In addition to controlling items in the environment, switch interfaces can also provide access to digital tools. This switch interface was designed for computer access.
It plugs into the computer's USB port and then translates the switch activation into different mouse controls or keystrokes.
Some switch interfaces are designed specifically for tablet access.
Using Bluetooth, this interface connects to a tablet and allows control through built in buttons or through external switches that better meet a student's needs. Switch interfaces allow educators to take a simple switch activation and connect it to meaningful participation across a student's day. By focusing on what a student needs to control and selecting the interface that supports that access, switches become tools for independence, engagement, and learning across environments.
