How do computer mice work , , Scroll Wheels

Check out for all kinds of PCBs, easy ordering, and quick delivery. Take a look at their PCB Assembly, for an inexpensive population of the components on your PCBs. Have you ever scrolled a scroll wheel and wondered how it scrolls Scroll is a rather strange word, isn t it Anywho, in this video, we re going to explore the inside of a computer mouse and look at two different scroll wheels: an optical rotary encoder, and a magnetic rotational position sensor, and see how they are used to measure up and down rotational movement in a computer mouse scroll wheel. We re also going to explore the push button under the scroll wheel as well as the freespinning vs. ratchet mode of the scroll wheel. Do you want to support indepth engineering and technology education Support us on: Website: On Facebook: On Twitter: