If your mouse wheel feels jerky or scrolls the wrong way, here's how to get back to smooth scrolling.

Build your very own custom computer mouse powered by Arduino, using 3D printed components together with a selection of buttons and controls ...

Luckily, using the mouse scroll wheel encoder with an Arduino Uno proved to be easy after I made a slight modification (see below). Here, JP-A and JP-B are renamed as D11 and D12 respectively.