Gpio Pins Raspberry Pi 3b

Firstly go to the raspi config tool by entering the following command.

Gpio pins raspberry pi 3b. Raspberry pi 40 pin gpio header. Raspberry pi 40 pin gpio layout. Instead a new serial port dev ttys0 has been provided which is implemented with a software based uart miniuart. In here go to advanced options and then to i2c enable i2c by pressing yes.

Hardware interfaces for the raspberry pi 2 and raspberry pi 3 are exposed through the 40 pin header j8 on the board. If you are reading the raspberry pi copyright statement printed on the pcb then pin 1 is in the bottom left and pin 40 is in the top right. It also includes dozens of pinouts for raspberry pi add on boards hats and phats. Resistors value can be caculated as this.

Enable i2c and spi in raspi config. Prior to the pi 1 model b 2014 boards comprised a shorter 26 pin header. 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. 24x gpio pins.

Sudo apt get install rpi gpio configuring raspberry pi i2c. Raspberry pi 2 3 pin mappings. 5 minutes to read. Setting up the i2c pins on the raspberry pi is super easy and will only take a couple of minutes to do.

Install the rpi gpio package sudo apt install rpi gpio. A 40 pin gpio header is found on all current raspberry pi boards unpopulated on pi zero and pi zero w. 1x serial uarts rpi3 only includes mini uart 2x spi bus. 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 models that use this configuration are. My 5mm led s forward current is around 20ma might be different to yours voltage supply from rpi is 3 3v so the resistor for led is 3 3 v 20 ma 165 omh. The raspberry pi 4 board has a gpio header with 40 pins. Gpios allow you to easily use hardware features and communication directly from a computer the raspberry pi microprocessor.

2x 5v power pins. Here s a map and detailed explanation of what each does including on the pi 4. Any of the gpio pins can be designated in software as an input or output pin and used for a wide range of purposes. 1x i2c bus.

2x 3 3v. There are 8 available gpio pins on raspberry pi. The majority of raspberry pi models use the same 40 pin header. On the raspberry pi model 3b the hardware based serial uart device dev ttyama0 has been re purposed to communicate with the the built in bluetooth modem and is no longer mapped to the serial rx tx pins on the gpio header.

This gpio header is also the same for raspberry pi 3 boards so this guide applies to both versions. Start by updating your system sudo apt update sudo apt upgrade. Support pinout xyz on patreon.