GPIO

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

STM32 Nucleo board wired to an LED and push button on a practical electronics workbench

NotesFirmwareSeptember 7, 2026

STM32 Beginner Guide P2: GPIO, Interrupts, and Timers from the First Example

Learn to configure GPIO, capture a button event with an EXTI interrupt, and create a periodic time base with a timer on STM32CubeIDE using a NUCLEO-G071RB board.

STM32 Beginner Guide GPIO Interrupts Timers STM32CubeIDE

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

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