Raspberry Pi 3 B Gpio
We have included all three iterations of the pi for the pinout diagram.
Raspberry pi 3 b gpio. A 40 pin gpio header is found on all current raspberry pi boards unpopulated on pi zero and pi zero w. The previous model b had 17 on the main p1 header and four more on the now deleted p5 header. The earlier models such as the raspberry pi b have just 26 pins. Raspberry pi was mainly designed for educational purposes allowing young people to take their first steps in programming with an inexpensive linux computer.
This offers and increase of 14 pins over the 26 pin header on the original raspberry pi. The older iterations of the rpi such as the raspberry pi model b will only contain a total of 26pins. One of the most significant changes to the raspberry pi model b is the 40 pin header j8. By matt on july 18 2014 model b.
I wanted to check out the gpio ports on the raspberry pi b. The relay switch is utilized by means of a low voltage pulse. For this purpose relays can be used on the raspberry pi. Since the pi only tolerates a maximum of 5v the gpios even only 3 3v without relays there is the.
The raspberry pi 3 features the same 40 pin general purpose input output gpio header as all the pis going back to the model b and model a. There s a full explanation of the ports in the diagram here. The new b has 26 ports available for gpio work. Any of the gpio pins can be designated in software as an input or output pin and used for a wide range of purposes.
If you re an owner of a raspberry pi b 2 zero or 3 then you will have 40 pins in total. Prior to the pi 1 model b 2014 boards comprised a shorter 26 pin header. Raspberry pi b gpio header details and pinout 14. Pinout also includes dozens of pinouts for raspberry pi add on boards hats and phats.
See below for the raspberry pi gpio pinout diagram. The raspberry pi gpio pinout guide. If you love pinout please help me fund new features and improvements. Raspberry pi gpio layout model b.
The only change is a switch to which uart is exposed on the gpio s pins but that s handled internally by the operating system. Explaining the raspberry pi gpio pinout ref. Often you want to control modules with a higher voltage with the raspberry pi. The top 26 pins are all the same but the 14 new pins contain 9 gpio ports.
This gpio pinout is an interactive reference to the raspberry pi gpio pins and a guide to the raspberry pi s gpio interfaces.