How can I prevent an external switch from repeatedly activating when held down?

If an individual cannot remove their hand from an external switch quickly and accidentally causes the switch to repeatedly activate by holding it down, you may consider setting a Debouncing interval. This option sets a time period after a successful switch hit has occurred,during which switch hits are ignored. This option is useful for people who have trouble moving away from the switch after activating it, resulting in unintended switch hits.

To set Debouncing, follow these steps:

  1. Open Proloquo2Go and go to Options View:
    To open Options View on an iPad, tap the Options button (gear icon) on the bottom toolbar.
    To open Options View on an iPhone or iPod touch, tap the Tools button (four squares icon) and then tap Options.
  2. Tap Access Method
  3. Under the Switch Access section, tap Configuration.
  4. Tap Advanced.
  5. Scroll down to the Switch Interaction section, and then enter a number in the Debouncing field. Tap the "+" and "-" buttons to adjust the number. Note you can tap in the field and enter a number with the iOS keyboard, but to do so you may need to press a button on your switch interface to bring up the keyboard. 

Note that when using the Automatic Scanning, Automatic Selecting, Inverse Scanning, and Automatic Step Scanning scan modes, Debouncing can only be set to a maximum of 50% of your Scan Rate. For example, if your Scan Rate is set to 3 seconds, you can set Debouncing to a maximum of 1.5 seconds.

If you have any questions, please email us at for further assistance.

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