Here's a library that has some effects to test as well: https://www.hapticsjs.org/ https://www.hapticsjs.org/ Looks like the vibration on phones only has a sin

Here's a library that has some effects to test as well: https://www.hapticsjs.org/ https://www.hapticsjs.org/ Looks like the vibration on phones only has a single strength setting, unlike those in gamepads.