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Microcontroller
Raspberry Pi Pico 2 W
The wireless Pico 2 adds Wi-Fi and Bluetooth via a CYW43439 to the RP2350, keeping the identical 40-pin castellated header of the Pico 2 for drop-in upgrades of networked embedded projects.
Processor
RP2350 dual-core Arm Cortex-M33 / RISC-V Hazard3 + CYW43439
Logic
3.3 V GPIO
Power
Micro-USB, VSYS, VBUS
Format
40-pin DIP module
Check before wiring
- GPIO is 3.3 V only and not 5 V tolerant.
- CYW43439 shares the SPI bus internally with RP2350; some GPIO are used by the wireless subsystem.
- WL_GPIO0, WL_GPIO1, WL_GPIO2 control the CYW43439 and are not exposed on the header.
Interfaces
GPIOI2CSPIUARTADCPWMUSBSWDWi-FiBluetooth
Source-backed connector
Interactive pin map
Pin map
Raspberry Pi Pico 2 W
Component view / 40-pin castellated DIP edge
Component placement is illustrated; small components and markings may vary with board revision. Decorative traces do not represent electrical connections.
All 40 pins (table)
40 / 40 pins
| Pin | Signal | Function / note | Actions |
|---|---|---|---|
| 1 | GP0UART | UART0 TX | |
| 2 | GP1UART | UART0 RX | |
| 3 | GNDGround | Ground | |
| 4 | GP2GPIO | GPIO | |
| 5 | GP3GPIO | GPIO | |
| 6 | GP4I2C | I2C0 SDA | |
| 7 | GP5I2C | I2C0 SCL | |
| 8 | GNDGround | Ground | |
| 9 | GP6GPIO | GPIO | |
| 10 | GP7GPIO | GPIO | |
| 11 | GP8SPI | SPI1 RX | |
| 12 | GP9SPI | SPI1 CS | |
| 13 | GNDGround | Ground | |
| 14 | GP10SPI | SPI1 SCK | |
| 15 | GP11SPI | SPI1 TX | |
| 16 | GP12GPIO | GPIO | |
| 17 | GP13GPIO | GPIO | |
| 18 | GNDGround | Ground | |
| 19 | GP14GPIO | GPIO | |
| 20 | GP15GPIO | GPIO | |
| 21 | GP16SPI | SPI0 RX | |
| 22 | GP17SPI | SPI0 CS | |
| 23 | GNDGround | Ground | |
| 24 | GP18SPI | SPI0 SCK | |
| 25 | GP19SPI | SPI0 TX | |
| 26 | GP20I2C | I2C0 SDA | |
| 27 | GP21I2C | I2C0 SCL | |
| 28 | GNDGround | Ground | |
| 29 | GP22GPIO | GPIO | |
| 30 | RUNSystem | System | |
| 31 | GP26ADC | ADC0 | |
| 32 | GP27ADC | ADC1 | |
| 33 | AGNDGround | Ground | |
| 34 | GP28ADC | ADC2 | |
| 35 | ADC_VREFADC | ADC | |
| 36 | 3V3Power | Power | |
| 37 | 3V3_ENSystem | System | |
| 38 | GNDGround | Ground | |
| 39 | VSYSPower | Power | |
| 40 | VBUSPower | Power |
- Pico exposes RP2040 GPIO0 through GPIO28, with GPIO23 through GPIO25 used internally.
- ADC pins are GP26, GP27, and GP28; ADC_VREF is available on physical pin 35.
- GPIO is 3.3 V logic and is not 5 V tolerant.
Why it matters
- Same 40-pin castellated edge as Pico and Pico 2 — breadboard compatible.
- Wi-Fi 4 (802.11n) and Bluetooth 5.2 via CYW43439.
- Official Pico 2 W pinout PDF and C SDK/MicroPython documentation.
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