I recently read a great post introducing the
vibration API that inspired me to play with using vibrations on mobile.
It was a simple enough API, but I found it difficult to make vibrations that followed a pattern I wanted.
In response, I created a vibration designer where you can tap out a pattern on and test out and copy the vibration code that recreates the pattern.
navigator.vibrate, and manipulation of CSS custom properties (variables).
Note: This is best used on Android mobile if you want to play the vibration.
For more details check out Can I Use: Vibration