Great Video: How Does Your Optical Mouse Work?


Excuse me while I totally geek out on this amazing video that goes into more detail than I’ve ever seen on the software and hardware inside a computer mouse, with terrific graphics.

You’ve probably used a mouse today. But do you know how it works?
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.

In this video, we explore the different parts of a computer mouse and we’ll focus on the optical navigation system. Specifically, we’ll look at how exactly computer mice can track their movement on a mouse pad. Finally, we take a look at the difference between gaming mice and normal mice, and we explore DPI or dots per inch and how different mice have different amounts of DPI.

Do you want to support in-depth engineering and technology education? Support us on

Or Join us on YouTube Memberships:

Animation & Modeling: Mike Radjabov
Modeling: Prakash Kakadiya
Script: Teddy Tablante
Twitter: @teddytablante
Voice Over- Phil Lee

Table of Contents:
00:00 - Inside of a Computer Mouse
00:43 - Image Sensor
03:16 - Cross-Correlation Algorithm
05:42 - Gaming Mice vs Normal Mice
06:50 - What exactly is DPI or Dots Per inch?
07:43 - How do we reach 25,000 DPI?
09:29 - Specs of different computer mice
10:39 - PCBWay Sponsored Segment
11:23 - Outro

Key Branches from this video are: Printed Circuit Boards, Lithium-Ion Batteries, Scroll Wheel, Bluetooth


Animation built using Blender 2.90.1
Post with Adobe Premiere Pro

Internet References:
Logitech MX Master 3 Teardown offers an Intriguing look at its new scroll wheel

Fixing the Logitech MX Master Scroll Wheel

Details of the Image Sensor

Inside the Omron D2FC-F-7N Microswitch

What is Mouse DPI? Does DPI Matter?

Logitech Mouse Review. Logitech MX Master Wireless Mouse. Packaging and Equipment

Razer Viper Gaming Mouse Review: Lefties Bestie, Righties’ Meh-stie

Wikipedia contributors. “Computer Mouse” , Interpolation Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, Visited October, 2021

Music Credits

#ComputerMouse #HowItWorks #Mouse

Jump to top

Create a PageThis is the LGF Pages posting bookmarklet. To use it, drag this button to your browser's bookmark bar, and title it 'LGF Pages' (or whatever you like). Then browse to a site you want to post, select some text on the page to use for a quote, click the bookmarklet, and the Pages posting window will appear with the title, text, and any embedded video or audio files already filled in, ready to go.
Or... you can just click this button to open the Pages posting window right away.
Last updated: 2021-06-05 2:51 pm PDT
LGF User's Guide RSS Feeds Tweet

Help support Little Green Footballs!

Subscribe now for ad-free access!Register and sign in to a free LGF account before subscribing, and your ad-free access will be automatically enabled.

Donate with
PayPal Shop at amazon
as an LGF Associate!
Recent PagesClick to refresh
Ludovico Einaudi - Luminous (Performance Video) "Underwater is a sound from another place"Order the new album: Underwater, Einaudi's first full solo piano album for 20 years, is a manifesto for life and a statement for this time when the world around him was quiet ...
1 week ago
Views: 525 • Comments: 0 • Rating: 0
Tweets: 2 •
Naked Capitalism Takedown on Biden’s Speech(0) [Introductory material omitted.] (1) But before we begin, I want to provide an update on our fight against COVID-19 and announce new steps[1]. [1] One would have expected new steps to generate some coverage, or, more precisely, to be ...
Captain Magic
1 week, 3 days ago
Views: 741 • Comments: 0 • Rating: 0
Tweets: 2 •
There Is No Such Thing as “Mild” CovidRead this thread. The good news down at the end is that full vaccination does help mitigate long Covid. Nevertheless, you don't want to get a "mild" case of Covid. PSA: COVID-19 isn’t “just a cold,” isn’t “a respiratory virus,” ...
No Malarkey!
2 weeks, 6 days ago
Views: 1,421 • Comments: 0 • Rating: 2
Tweets: 26 •