Raspberry Pi 3 Gpio Pins

To confuse things even more the gpio pins are sometimes renamed with another set of numbers.

Raspberry pi 3 gpio pins. We have included all three iterations of the pi for the pinout diagram. 2x 5v power pins. Start by updating your system sudo apt update sudo apt upgrade. Install the rpi gpio package sudo apt install rpi gpio.

Any of the gpio pins can be designated in software as an input or output pin and used for a wide range of purposes. Raspberry pi 2 3 pin mappings. A 40 pin gpio header is found on all current raspberry pi boards unpopulated on pi zero and pi zero w. The comprehensive gpio pinout guide for the raspberry pi.

Support pinout xyz on patreon. In order to avoid damaging your pi you need to be sure what pins you are connecting to other hardware and that your program is referring to the correct pins. The raspberry pi 4 board has a gpio header with 40 pins. The earlier models such as the raspberry pi b have just 26 pins.

The raspberry pi has two i2c connections at gpio 2 and 3 sda and scl are for i2c0 master and physical pins 27 and 28 are i2c pins that enable the pi to talk to compatible hat hardware. Prior to the pi 1 model b 2014 boards comprised a shorter 26 pin header. If you re an owner of a raspberry pi b 2 zero or 3 then you will have 40 pins in total. This gpio pinout is designed to be both a quick and interactive reference to the raspberry pi gpio pins plus a comprehensive guide to your raspberry pi s gpio interfaces.

The header provides 5v on pin 2 and 3 3v on pin 1. 24x gpio pins. See below for the raspberry pi gpio pinout diagram. 1x i2c bus.

Enable i2c and spi in raspi config. 2x 3 3v. 1x serial uarts rpi3 only includes mini uart 2x spi bus. Gpios allow you to easily use hardware features and communication directly from a computer the raspberry pi microprocessor.

This gpio header is also the same for raspberry pi 3 boards so this guide applies to both versions. Before starting with the gpio pins practice we need to do a few steps on the raspberry pi to make sure that everything is ready. 5 minutes to read. It also includes dozens of pinouts for raspberry pi add on boards hats and phats.

The older iterations of the rpi such as the raspberry pi model b will only contain a total of 26pins.