Connected IoT devices and wireless sensor nodes
On-board radio: Wi-Fi 802.11n (2.4 GHz); Bluetooth 5.2 (LE + Classic).
Engineering inference
Raspberry Pi Ltd
Raspberry Pi Pico W
RP2040 board with on-board 2.4 GHz Wi-Fi 4 + Bluetooth 5.2 (Infineon CYW43439): dual Cortex-M0+ 133 MHz, 264 kB SRAM, 2 MB flash, 26 × 3.3 V GPIO (3 ADC), micro-USB, 51×21 mm castellated.
SC0918Revision Rev3Development boardPrice · lowest of 2 sellers$6.00Raspberry Pi Ltd (RRP, datasheet) · unknown
Buy at Raspberry Pi Ltd (RRP, datasheet) - Raspberry Pi Ltd (RRP, datasheet)unknown$6.00
- Adafruitin stock$6.00
Board essentials
Facts about the complete product. Unknown values remain open design questions.
- Exposed GPIO
- 26
- Board I/O voltage
- 3.3 V
- Board flash capacity
- 2 MiB
- Board SRAM capacity
- 264 KiB
- Board operating range
- -20 to 70 °C
A good fit for
Guidance to help you shortlist. The basis is shown for each recommendation.
Custom digital protocols and precise timing
Programmable I/O state machines bit-bang protocols (WS2812, DVI, extra UARTs) without CPU load.
Engineering inferenceCustom USB devices (HID, MIDI, serial)
USB is on the main chip (RP2040), so the board can enumerate as a keyboard, MIDI device or CDC serial port.
Engineering inferenceLearning and fast prototyping
Programs from MicroPython.
Engineering inferenceInside this board
The board is the parent product. Each chip has its own memory, pins, capabilities and thermal limits.
main processor
RP2040
Raspberry Pi Ltd
8b309c21-ec45-5246-8643-790b3814eead--mcu- Architecture
- Dual Arm Cortex-M0+
- Documented clock
- 133 MHz
- On-chip SRAM
- 264 KiB
flash memory
W25Q16JV
Winbond
8b309c21-ec45-5246-8643-790b3814eead--flashcrystal
ABM8-272-T3
Abracon
8b309c21-ec45-5246-8643-790b3814eead--xtalbuck boost regulator
RT6154
Richtek
8b309c21-ec45-5246-8643-790b3814eead--smpswireless
CYW43439
Infineon
8b309c21-ec45-5246-8643-790b3814eead--wifiFAQ
Raspberry Pi Pico W questions
What microcontroller does the Raspberry Pi Pico W use?
The Raspberry Pi Pico W is built around the RP2040, alongside W25Q16JV, ABM8-272-T3, RT6154, CYW43439.
How many GPIO pins does the Raspberry Pi Pico W have?
26 GPIO pins are exposed. Xirkit documents 49 board pins, 31 of them with pin-level electrical limits.
Are the Raspberry Pi Pico W I/O pins 5 V tolerant?
No. The I/O pins are not 5 V tolerant — they run at 3.3 V logic; use a level shifter for 5 V signals. Input-high threshold: 2–3.6 V.
How much current can a Raspberry Pi Pico W GPIO pin source?
Documented output-high current per pin: ≤ 12 mA. Values are traced to the chip datasheet; see the pinout table for per-pin limits and conditions.
What voltage powers the Raspberry Pi Pico W?
Supply range 1.8–5.5 V. Power inputs: VSYS (1.8–5.5 V), VBUS.
How much does the Raspberry Pi Pico W cost?
From $6 at Raspberry Pi Ltd (RRP, datasheet) (2 supplier offers tracked). Prices are observed unit prices before tax and shipping.
What are the Raspberry Pi Pico W dimensions?
51 × 21 × 1 mm. A STEP model is available for enclosure fit checks.
Which interfaces does the Raspberry Pi Pico W support?
gpio, uart, i2c, spi, pwm, pio, usb, clock, other, adc.
How do I program the Raspberry Pi Pico W?
Supported frameworks: C/C++ SDK, MicroPython.
Where does this Raspberry Pi Pico W data come from?
Every value in this record is traced to a source — 3 documents including the board and chip datasheets — with the page and table cited per value. Unknowns are left explicit, never guessed.
Data & sources