General-purpose input/output - Wikipedia
A general-purpose input/output (GPIO) is an uncommitted digital signal pin on an integrated circuit or electronic circuit board which may be used as an input or output, or both, and is controllable by the user at runtime. GPIOs have no predefined purpose and are unused by default.
GPIO - Raspberry Pi Documentation
The remaining pins are all general purpose 3V3 pins, meaning outputs are set to 3V3 and inputs A GPIO pin designated as an input pin can be read as high (3V3) or low (0V). This is made easier with...
GPIO Mappings — The Linux Kernel documentation
GPIO Mappings¶. This document explains how GPIOs can be assigned to given devices and functions. Note that it only applies to the new descriptor-based interface.
Node.js Raspberry Pi GPIO Introduction
GPIO stands for General Purpose Input Output. The Raspberry Pi has two rows of GPIO pins, which are connections between the Raspberry Pi, and the real world. Output pins are like switches that the...
Raspberry gPIo - learn.sparkfun.com
A quick glance at the Raspberry Pi GPIO examples shows that there are dozens of programming-language-choices. We've pared that list down, and ended up with two really solid, easy tools for...
4. Configuring Remote GPIO — Gpiozero 1.5.1 Documentation
4. Configuring Remote GPIO¶. GPIO Zero supports a number of different pin implementations (low-level pin libraries which deal with the GPIO pins directly).
An Introduction to chardev GPIO and Libgpiod on the Raspberry PI...
Libgpiod (Library General Purpose Input/Output device) provides both API calls for use in your own programs and the following six user-mode applications to manipulate GPIO lines
GPIO — Zephyr Project Documentation
GPIO¶. Overview¶. Configuration Options¶. Related configuration options: CONFIG_GPIO. API Reference¶. Group gpio_interface. GPIO Driver APIs. GPIO input/output configuration flags.