GPIO

Everything tagged “GPIO” across notes, resources, and Mochi logs.

An ESP32-S3 development board beside a MacBook Pro displaying a pinout reference on a practical electronics workbench

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NotesFirmwareSeptember 3, 2026

ESP32 Beginner Guide – P3: Pinout and GPIO

Read an ESP32 pinout, choose GPIO for input and output, use pull-ups, wire an LED and button, and avoid boot, flash, PSRAM, and unsafe 5 V signals.

ESP32 Beginner Guide ESP32 Pinout GPIO Arduino-ESP32 Electronics

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