This guy literally turned his MacBook trackpad into a weighing scale.

The claim that someone literally turned a MacBook trackpad into a weighing scale is accurate. The MacBook's Force Touch trackpad includes pressure sensors capable of detecting subtle differences in applied force. Developer Krish Shah leveraged this hardware feature by creating an app called TrackWeight, which interprets the pressure data from the trackpad to estimate the weight of objects placed on it.

This approach uses the Force Touch system's pressure sensitivity, which Apple originally designed for gesture controls and haptic feedback, repurposed here for weight measurement. The source code for this project is fully open source and available on GitHub, allowing others to verify and build upon the work. Multiple credible sources including Tom's Hardware, NotebookCheck.

Net, and Hacker News discussions confirm the functionality and availability of this app. While the trackpad was not originally intended as a scale, the hack demonstrates a plausible and functional use case with reasonable accuracy for small weights. This does not imply industrial-grade precision but confirms the feasibility of using the MacBook trackpad as a weighing device through software innovation.tomshardware.comtomshardware.comMacBook Pro trackpad can double as a weighing scale, and the source code is free...github.comgithub.comKrishKrosh/TrackWeightnotebookcheck.netnotebookcheck.netApple MacBook Pro and MacBook Air: Touchpad becomes a scale thanks to free app