🟢

Raspberry Pi Pico Pinout

RP2040 Dual-Core Cortex-M0+ · 133 MHz · 3,3V I/O · 26 GPIO · 3x ADC · 2x UART/SPI/I2C · 16 PWM

3,3V-Logik: Alle GPIO-Pins arbeiten mit maximal 3,3V. Kein Pin ist 5V-tolerant. ADC-Pins (GP26-GP28) maximal 3,3V anlegen.

Raspberry Pi Pico — RP2040

-- Micro USB --

GP0

VBUS

GP1

VSYS

GND

GP2

3V3EN

GP3

3V3

GND

AREF

GP4

GP28

GP5

AGND

GND

GP27

GP6

GP26

GP7

RUN

GND

GP22

GP8

GND

GP9

GP21

GND

GP20

GP10

GP19

GP11

GP18

GND

GP12

GP17

GP13

GP16

GP25 = Onboard-LED (intern)

Click pin for details

All pins

40 Pins

Pin	Typ	Funktionen	Beschreibung
GP0	UART	Digital, UART0 TX, SPI0 RX, I2C0 SDA, PWM0A	GPIO 0 — UART0 TX, SPI0 RX (MISO), I2C0 SDA, PWM Kanal 0A. 3,3V Logik.
GP1	UART	Digital, UART0 RX, SPI0 CSn, I2C0 SCL, PWM0B	GPIO 1 — UART0 RX, SPI0 CS, I2C0 SCL, PWM 0B.
GND	GND	Ground	Masse (GND).
GP2	SPI	Digital, SPI0 SCK, I2C1 SDA, PWM1A	GPIO 2 — SPI0 Clock, I2C1 SDA, PWM 1A.
GP3	SPI	Digital, SPI0 TX, I2C1 SCL, PWM1B	GPIO 3 — SPI0 MOSI, I2C1 SCL, PWM 1B.
GND	GND	Ground	Masse (GND).
GP4	UART	Digital, UART1 TX, SPI0 RX, I2C0 SDA, PWM2A	GPIO 4 — UART1 TX, SPI0 RX, I2C0 SDA, PWM 2A.
GP5	UART	Digital, UART1 RX, SPI0 CSn, I2C0 SCL, PWM2B	GPIO 5 — UART1 RX, SPI0 CS, I2C0 SCL, PWM 2B.
GND	GND	Ground	Masse (GND).
GP6	SPI	Digital, SPI0 SCK, I2C1 SDA, PWM3A	GPIO 6 — SPI0 Clock, I2C1 SDA, PWM 3A.
GP7	SPI	Digital, SPI0 TX, I2C1 SCL, PWM3B	GPIO 7 — SPI0 MOSI, I2C1 SCL, PWM 3B.
GND	GND	Ground	Masse (GND).
GP8	UART	Digital, UART1 TX, SPI1 RX, I2C0 SDA, PWM4A	GPIO 8 — UART1 TX, SPI1 RX (MISO), I2C0 SDA, PWM 4A.
GP9	UART	Digital, UART1 RX, SPI1 CSn, I2C0 SCL, PWM4B	GPIO 9 — UART1 RX, SPI1 CS, I2C0 SCL, PWM 4B.
GND	GND	Ground	Masse (GND).
GP10	SPI	Digital, SPI1 SCK, I2C1 SDA, PWM5A	GPIO 10 — SPI1 Clock, I2C1 SDA, PWM 5A.
GP11	SPI	Digital, SPI1 TX, I2C1 SCL, PWM5B	GPIO 11 — SPI1 MOSI, I2C1 SCL, PWM 5B.
GND	GND	Ground	Masse (GND).
GP12	UART	Digital, UART0 TX, SPI1 RX, I2C0 SDA, PWM6A	GPIO 12 — UART0 TX, SPI1 RX (MISO), I2C0 SDA, PWM 6A.
GP13	UART	Digital, UART0 RX, SPI1 CSn, I2C0 SCL, PWM6B	GPIO 13 — UART0 RX, SPI1 CS, I2C0 SCL, PWM 6B.
VBUS	Power	VBUS	USB bus voltage from micro-USB port. Not protected by regulator.
VSYS	Power	VSYS	Main power input. Powers the integrated buck-boost regulator (300 mA).
GND	GND	Ground	Masse (GND).
3V3EN	Spezial	3.3V Enable	Regulator Enable. Pull to GND to turn off the 3.3V regulator.
3V3	Power	3.3V Out	3.3V output. Up to 300 mA. All GPIO pins operate at 3.3V.
AREF	ADC	ADC_VREF	ADC-Referenzspannung. Standard 3,3V. Externes Referenz-Signal anlegbar.
GP28	ADC	ADC2, SPI1 RX, I2C0 SDA, PWM6A	GPIO 28 — ADC Kanal 2 (0-3,3V), SPI1 RX, I2C0 SDA, PWM 6A.
AGND	GND	Analog GND	Analog ground. Route separately from Digital-GND for precise ADC measurements.
GP27	ADC	ADC1, SPI1 TX, I2C1 SCL, PWM5B	GPIO 27 — ADC Kanal 1, SPI1 TX (MOSI), I2C1 SCL, PWM 5B.
GP26	ADC	ADC0, SPI1 SCK, I2C1 SDA, PWM5A	GPIO 26 — ADC Kanal 0, SPI1 Clock, I2C1 SDA, PWM 5A.
RUN	Spezial	Reset	Master Reset. Pull to GND for RP2040 reset. Has internal pull-up.
GP22	Digital	Digital, I2C1 SDA, PWM3A	GPIO 22 — Allgemeines Digital-I/O, I2C1 SDA, PWM 3A.
GND	GND	Ground	Masse (GND).
GP21	I2C	Digital, SPI0 CSn, I2C0 SCL, PWM2B, UART1 RX	GPIO 21 — SPI0 CS, I2C0 SCL, UART1 RX, PWM 2B.
GP20	I2C	Digital, SPI0 RX, I2C0 SDA, PWM2A, UART1 TX	GPIO 20 — SPI0 RX (MISO), I2C0 SDA, UART1 TX, PWM 2A.
GP19	SPI	Digital, SPI0 TX, I2C1 SCL, PWM1B	GPIO 19 — SPI0 MOSI, I2C1 SCL, PWM 1B.
GP18	SPI	Digital, SPI0 SCK, I2C1 SDA, PWM1A	GPIO 18 — SPI0 Clock, I2C1 SDA, PWM 1A.
GND	GND	Ground	Masse (GND).
GP17	SPI	Digital, SPI0 CSn, I2C0 SCL, PWM0B, UART0 RX	GPIO 17 — SPI0 CS, I2C0 SCL, UART0 RX, PWM 0B.
GP16	SPI	Digital, SPI0 RX, I2C0 SDA, PWM0A, UART0 TX	GPIO 16 — SPI0 RX (MISO), I2C0 SDA, UART0 TX, PWM 0A.

Interactive Pinout Map

Our interactive Raspberry Pi Pico Pinout tool provides a clear way to visualize the hardware layout of the RP2040 chip directly in your browser. By clicking on any pin, you can see specific details regarding its function, such as PWM or I2C support. Because the tool processes information locally in your browser, it is fast and convenient for identifying connections during the prototyping phase without needing to consult a physical reference manual.

Technical Specifications

The Raspberry Pi Pico features a dual-core ARM Cortex-M0+ processor running at 133 MHz with 26 multi-function GPIO pins. Our tool highlights essential technical details, including three ADC channels and sixteen PWM outputs. It also provides critical hardware information, such as the GP25 onboard LED, specific requirements for using the analog ground for precise measurements, and power management notes regarding the integrated buck-boost regulator.

Frequently asked questions

What is the operating voltage of the Raspberry Pi Pico?

The Raspberry Pi Pico operates at 3.3V logic levels. All GPIO pins operate at this voltage, and the system includes an integrated buck-boost regulator providing up to 300mA. Note that the USB bus voltage from the micro-USB port is not protected by a regulator.

How many GPIO pins does the RP2040 have?

The Raspberry Pi Pico featuring the RP2040 chip has 26 multi-function GPIO pins. These can be configured for various tasks including digital I/O, PWM, and communication protocols like UART, SPI, and I2C, making it a versatile choice for many electronic projects.

Which pin is used for the onboard LED?

The internal LED on the Raspberry Pi Pico is connected to pin GP25. Identifying this specific pin is useful when writing code to blink the indicator or using it as a status signal in your custom hardware designs and embedded software projects.

Does the board support I2C, SPI, and UART?

Yes, the RP2040 chip supports multiple communication protocols including two instances of UART, SPI, and I2C. These are mapped across various GPIO pins, allowing you to connect several sensors or peripherals simultaneously in your projects.