Hardware

Technical articles and references related to Hardware.

2026-06-18 6 min read

UART, RS-232, and RS-485 on Android SBCs: Picking the Right Serial Interface

uart
rs232

A practical comparison of UART, RS-232, and RS-485 for Android SBC integration — signal levels, cable distance, noise immunity, and how to wire each...

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2026-05-08 7 min read

PoE Splitters for Android SBC Deployments: Power Budget, Voltage, and What Goes Wrong

poe
android-sbc

A practical guide to using PoE splitters with Android SBCs — covering 802.3af vs 802.3at standards, power budget math, voltage selection, and when...

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