Using a Logitech Mouse as a Data Storage Device: A Technical Exploration
By
birdculture
Crispy enough to crunch, soft enough to enjoy. A good bake.
Summary
A developer explores the technical possibility of using a Logitech MX Vertical mouse as a data storage device by leveraging its internal flash memory that stores DPI settings. The article details the investigation into Logitech's HID++ protocol, the discovery that mice have writable memory, and the creation of a proof-of-concept tool to read and write data to the mouse's memory. The author successfully stores and retrieves a small text file, demonstrating the feasibility of using mice as unconventional data carriers.
Key quotes
· 5 pulledIt started with a dumb idea. I have a Logitech MX Vertical, which travels between my home machine, work laptop and other devices constantly. At some point I looked at it and thought: this thing has a flash memory. It has to, otherwise how does it remember the DPI setting between plugs.
The plan was to treat the mouse like a tiny USB drive. Since it physically travels between computers, it could technically carry data with it.
Logitech mice communicate over something called HID++, a protocol they built on top of standard USB HID.
I was able to read and write to the mouse's memory! This meant I could store data in it.
I successfully stored a small text file in my mouse and retrieved it on another computer. The mouse had become a data carrier.
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