树莓派 Pico W 引脚功能（Pinout）

Pin Name SPI I2C UART PWM
1 GP0 SPI0 RX I2C0 SDA UART0 TX PWM0 A
2 GP1 SPI0 CSn I2C0 SCL UART0 RX PWM0 B
3 Ground
4 GP2 SPI0 SCK I2C1 SDA UART0 CTS PWM1 A
5 GP3 SPI0 TX I2C1 SCL UART0 RTS PWM1 B
6 GP4 SPI0 RX I2C0 SDA UART1 TX PWM2 A
7 GP5 SPI0 CSn I2C0 SCL UART1 RX PWM2 B
8 Ground
9 GP6 SPI0 SCK I2C1 SDA UART1 CTS PWM3 A
10 GP7 SPI0 TX I2C1 SCL UART1 RTS PWM3 B
11 GP8 SPI1 RX I2C0 SDA UART1 TX PWM4 A
12 GP9 SPI1 CSn I2C0 SCL UART1 RX PWM4 B
13 Ground
14 GP10 SPI1 SCK I2C1 SDA UART1 CTS PWM5 A
15 GP11 SPI1 TX I2C1 SCL UART1 RTS PWM5 B
16 GP12 SPI1 RX I2C0 SDA UART0 TX PWM6 A
17 GP13 SPI1 CSn I2C0 SCL UART0 RX PWM6 B
18 Ground
19 GP14 SPI1 SCK I2C1 SDA UART0 CTS PWM7 A
20 GP15 SPI1 TX I2C1 SCL UART0 RTS PWM7 B
Raspberry Pi Pico W with the micro USB port facing upwards, standing face-up on its GPIO pins.
Raspberry Pi Pico W with the micro USB port facing downwards, standing bottom-up on its GPIO pins.
Pin Name/ADC SPI I2C UART PWM
40 VBUS
39 VSYS
38 Ground
37 3V3 En
36 3V3 Out
35 ADC VRef
34 GP28 / A2 SPI1 RX I2C0 SDA UART0 TX PWM6 A
33 ADC Gnd
32 GP27 / A1 SPI1 TX I2C1 SCL UART1 RTS PWM5 B
31 GP26 / A0 SPI1 SCK I2C1 SDA UART1 CTS PWM5 A
30 RUN
29 GP22 SPI0 SCK I2C1 SDA UART1 CTS PWM3 A
28 Ground
27 GP21 SPI0 CSn I2C0 SCL UART1 RX PWM2 B
26 GP20 SPI0 RX I2C0 SDA UART1 TX PWM2 A
25 GP19 SPI0 TX I2C1 SCL UART0 RTS PWM1 B
24 GP18 SPI0 SCK I2C1 SDA UART0 CTS PWM1 A
23 Ground
22 GP17 SPI0 CSn I2C0 SCL UART0 RX PWM0 B
21 GP16 SPI0 RX I2C0 SDA UART0 TX PWM0 A
引脚 功能 说明
GP23 Wireless Power On
GP24 Wireless SPI Data
GP25 Wireless SPI Chip-Select
GP29 / A3 Wireless SPI Clock / VSYS Sense 通过电阻分压器和 FET Q1 读取 VSYS/3
A4 Temperature 读取板载温度传感器
WL_GPIO0 User LED 板载 LED
WL_GPIO1 RT6150B-33GQW Power-Select PFM 时为低电平
PWM 时为高电平
WL_GPIO2 VBUS Sense 检测 USB 电源或 VBUS 引脚