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Tangibles-Book November 5, 2025 2 min read

Digital Interfaces

By Yoel Frischoff

led display module

How digital interfaces have reshaped hardware products, from simple dials to advanced touchscreens, enabling software-defined interactions and over-the-air updates while creating new vulnerability and dependency challenges

A fork cannot change what it does after it leaves the factory. Neither can a sofa, a wrench, or a hammer. They are all made immutable. Fixed behavior, fixed configuration. While every product is an answer to the question what can it do — wouldn’t it be better if that answer could evolve as needed?

Add an indicator gauge, and suddenly the operator can adapt the function of that product – adjusting pressure, fuel flow, speed in response to what the gauge reveals. Add a digital display, and the product can present different information to different users, in different contexts. Add a touch screen, and both the controls and the layout become fluid software – reconfigurable without touching a single mold. Add a wireless link, and the manufacturer can reach into every unit ever shipped and change what it does overnight.

Yoel Frischoff

About the author

Yoel Frischoff

Smart product strategist shipping connected products since 1994. Yoel is the founder of TheRoad, advising hardware companies on IoT product strategy, business models, and go-to-market — bridging design, technology, and services.

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