The Raspberry Pi GPIO pinout guide. This GPIO Pinout is an interactive reference to the Raspberry Pi GPIO pins, and a guide to the Raspberry Pi's GPIO interfaces. Pinout also includes hundreds of pinouts for Raspberry Pi add-on boards, HATs and pHATs .

PWM (Pulse-width Modulation) is a method of creating an analog voltage by toggling a digital pin on and off.

WiringPi is an attempt to bring Arduino-wiring-like simplicity to the Raspberry Pi. The goal is to have a single common platform and set of functions for accessing the Raspberry Pi GPIO across multiple languages.

UART is commonly used on the Pi as a convenient way to control it over the GPIO, or access the kernel boot messages from the serial console (enabled by default). It can also be used as a way to interface an Arduino, bootloaded ATmega, ESP8266, etc with your Pi.

GPIO 2 and GPIO 3 - the Raspberry Pi's I2C1 pins - allow for two-wire communication with a variety of external sensors and devices. The I2C pins include a fixed 1.8 kΩ pull-up resistor to 3.3v. They are not suitable for use as general purpose IO where a pull-up might interfere.

The IO Pi Zero Expander is powered through the host Raspberry Pi using the GPIO port and extended pins on the GPIO connector allow you to stack the IO Pi Zero along with other expansion boards. Features. 16 Digital Inputs/Outputs; Control via the Raspberry Pi I2C port; Stack up to 8 IO Pi boards on a single Raspberry Pi; Jumper selectable I2C ...

The Sense HAT is an add-on board for Raspberry Pi comprising of a 8×8 RGB LED matrix, a five-button joystick and the following sensors: Gyroscope, Accelerometer, Magnetometer, Temperature, Barometric pressure and Humidity.

Known as the four-wire serial bus, SPI lets you attach multiple compatible devices to a single set of pins by assigning them different chip-select pins. To talk to an SPI device, you assert its corresponding chip-select pin.

One-wire is a single-wire communication bus typically used to connect sensors to the Pi. The Raspberry Pi supports one-wire on any GPIO pin, but the default is GPIO 4. To enable the one-wire interface you need to add the following line to /boot/config.txt, before rebooting your Pi: dtoverlay=w1-gpio or . dtoverlay=w1-gpio,gpiopin=x

Orientate your Pi with the GPIO on the right and the HDMI port(s) on the left. GPIO (General Purpose IO) SPI (Serial Peripheral Interface) I 2 C (Inter-integrated Circuit) UART (Universal Asynchronous Receiver/Transmitter) PCM (Pulse Code …