Interactive chip reference

Raspberry Pi GPIO Dev Board-40 pinout

Raspberry Pi GPIO 40-pin Dev Board-40 pinout. 40-pin GPIO header — compatible with Pi 2, 3, 4, 5, and Zero variants

Package
Dev Board-40
Pin count
40
Category
Dev Boards

Pin reference

Pin Name Function Group
1 3V3 Physical 1 — 3.3V power output (50mA max) power
2 GPIO2 Physical 3 — GPIO2, I2C1 SDA (1.8kΩ pullup) bidir
3 GPIO3 Physical 5 — GPIO3, I2C1 SCL (1.8kΩ pullup) bidir
4 GPIO4 Physical 7 — GPIO4, GPCLK0, 1-Wire bus (default) bidir
5 GND Physical 9 — Ground ground
6 GPIO17 Physical 11 — GPIO17 bidir
7 GPIO27 Physical 13 — GPIO27 bidir
8 GPIO22 Physical 15 — GPIO22 bidir
9 3V3 Physical 17 — 3.3V power output (50mA shared budget) power
10 GPIO10 Physical 19 — GPIO10, SPI0 MOSI bidir
11 GPIO9 Physical 21 — GPIO9, SPI0 MISO bidir
12 GPIO11 Physical 23 — GPIO11, SPI0 SCLK clock
13 GND Physical 25 — Ground ground
14 GPIO0 Physical 27 — GPIO0, ID_SD (HAT EEPROM I2C, reserved) bidir
15 GPIO5 Physical 29 — GPIO5 bidir
16 GPIO6 Physical 31 — GPIO6 bidir
17 GPIO13 Physical 33 — GPIO13, PWM1 bidir
18 GPIO19 Physical 35 — GPIO19, SPI1 MISO, PCM_FS bidir
19 GPIO26 Physical 37 — GPIO26 bidir
20 GND Physical 39 — Ground ground
40 5V Physical 2 — 5V power output from USB/GPIO supply power
39 5V Physical 4 — 5V power output (same rail as pin 2) power
38 GND Physical 6 — Ground ground
37 GPIO14 Physical 8 — GPIO14, UART0 TXD bidir
36 GPIO15 Physical 10 — GPIO15, UART0 RXD bidir
35 GPIO18 Physical 12 — GPIO18, PCM_CLK, PWM0 bidir
34 GND Physical 14 — Ground ground
33 GPIO23 Physical 16 — GPIO23 bidir
32 GPIO24 Physical 18 — GPIO24 bidir
31 GND Physical 20 — Ground ground
30 GPIO25 Physical 22 — GPIO25 bidir
29 GPIO8 Physical 24 — GPIO8, SPI0 CE0 bidir
28 GPIO7 Physical 26 — GPIO7, SPI0 CE1 bidir
27 GPIO1 Physical 28 — GPIO1, ID_SC (HAT EEPROM I2C, reserved) bidir
26 GND Physical 30 — Ground ground
25 GPIO12 Physical 32 — GPIO12, PWM0 bidir
24 GND Physical 34 — Ground ground
23 GPIO16 Physical 36 — GPIO16, SPI1 CE0 bidir
22 GPIO20 Physical 38 — GPIO20, SPI1 MOSI, PCM_DIN bidir
21 GPIO21 Physical 40 — GPIO21, SPI1 SCLK, PCM_DOUT bidir

View the interactive Raspberry Pi GPIO package diagram and labeled pin details on WhichPin.