Raspberry Pi Pinout Diagram

One of the most notable features of the Raspberry Pi is its expansion port, which allows us to interact with the physical world through its GPIO (General Purpose Input/Output) pins.

The Raspberry Pi has a total of 40 pins, although not all are available for general use. Furthermore, some of them have specific functions, such as power, ground, or communication.

The Pinout is a diagram that explains the arrangement of the pins and their specific function. It allows us to know how we can connect sensors, actuators, displays, and other electronic devices.

So let’s take a detailed look at the Raspberry Pi diagram and pinout. In the following tutorials, we will explain the different functionalities 👇.

1

3.3V

3

GPIO 2

SDA

5

GPIO 3

SCL

7

GPIO 4

9

GND

11

GPIO 17

13

GPIO 27

15

GPIO 22

17

3.3V

19

GPIO 10

MOSI

21

GPIO 9

MISO

23

GPIO 11

CLK

25

GND

27

GPIO 0

EEPROM

29

GPIO 5

31

GPIO 6

33

GPIO 13

PWM1

35

GPIO 19

PWM1

I2S FS

37

GPIO 26

39

GND

2

5V

4

5V

6

GND

8

GPIO 14

TXD0

10

GPIO 15

RXD0

12

GPIO 18

PWM0

I2S CLK

14

GND

16

GPIO 23

18

GPIO 24

20

GND

22

GPIO 25

24

GPIO 8

CE0

26

GPIO 7

CE1

28

GPIO 1

EEPROM

30

GND

32

GPIO 12

PWM0

34

GND

36

GPIO 16

38

GPIO 20

I2S DIN

40

GPIO 21

I2S DOUT

Legend and filtering

(click the buttons to show or hide pins)

• POWER
• GPIO
• PWM
• UART
• SPI
• I2C
• COMM

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Power Pins

• 3V3 (Pins 1 and 17): Provide 3.3V power. Useful for sensors and low-power devices.
• 5V (Pins 2 and 4): Provide 5V power. Ideal for devices that require more power.

GPIO Pin Configuration

To use the GPIO pins, they must be configured as inputs or outputs. This can be done using programming languages like Python with the RPi.GPIO library.

• GPIO (Pins 3, 5, 7, 8, 10, 11, 12, 13, 15, 16, 18, 19, 21, 22, 23, 24, 26, 27, 28, 29, 31, 32, 33, 35, 36, 37, 38, 40): General-purpose pins that can be configured as inputs or outputs.
• PWM (Pin 12): GPIO18 supports PWM output for motor or LED control.

Communication Interfaces