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Raspberry Pi Pico Pinout

Raspberry Pi Pico Pinout

The Raspberry Pi Pico is a microcontroller development board built by the same makers of the Raspberry Pi. As seen in the Raspberry Pi Pico pinout diagram below, it has 40 GPIO pins with 3 analog inputs. It features the RP2040, a 32-bit dual ARM cortex M0+ microcontroller chip with a processing speed of 133 Mhz. The Raspberry Pi Pico is just one of many dev boards featuring the RP2040.

Raspberry Pi Pico Pinout

 

The Pico can run code either through CMAKE , Arduino IDE, or Python. Its pins are at a 3.3V level, just like most ARM-based microcontrollers.

Raspberry Pi Pico Pinout Description

Multiple pins for the Pico have multiple functions. In general, you can categorize the pin functions as GPIO, UART, I2C, ADC, or SPI.

General Purpose Pins

Pin Name
UART?
I2C?
SPI?
ADC?
GPIO0
GPIO1
GPIO2
GPIO3
GPIO4
GPIO5
GPIO6
GPIO7
GPIO8
GPIO9
GPIO10
GPIO11
GPIO12
GPIO13
GPIO14
GPIO15
GPIO16
GPIO17
GPIO18
GPIO19
GPIO20
GPIO21
GPIO22
GPIO26
GPIO27
GPIO28

Power Pins

The Pico runs on 3.3 V logic levels. While VBUS is generally 5 V, it is not recommended to power other devices from it.

Pin Name
Pin Number(s)
Description
3.3 V
36
3.3V Power Source
3.3 V EN
37
SMPS/Regulator enable pin. Shorting this to ground disables 3.3 V output and also turns off the Pico
RUN
30
RP2040 enable pin. Shorting this to ground resets the RP2040
VBUS
40
The microUSB input voltage, usually 5V
VSYS
39
System voltage used by the SMPS/Regulator to provide 3.3V to RP2040. Can be between 1.8V to 5.5V
GND
3,8,13,18,33,28,23
Ground
ADC_VREF
35
Reference voltage for the analog-to-digital converter

SWD Pins

The SWD pins are used to reprogram the Raspberry Pi Pico’s flash memory or for interactive code debugging.

Pin Name
Description
SWDIO
SWD data pin
SWCLK
SWD clock pin
GND
Ground pin

Raspberry Pi Pico Schematic

raspberry pi pico pinout schematic

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