Raspberry Pi Pico WH

Raspberry Pi Pico WH is a low-cost, flexible microcontroller development board built around the RP2040 chip and equipped with 2.4 GHz wireless connectivity. It combines the capabilities of Raspberry Pi Pico W with pre-soldered 0.1″ headers, making it suitable for rapid prototyping, breadboard use, and permanent installations without soldering.

The board uses the RP2040 dual-core Arm Cortex-M0+ microcontroller, running at up to 133 MHz, and includes 2 MB of external QSPI flash memory. Wireless connectivity is provided via a single-band 802.11n (2.4 GHz) Wi-Fi interface.

Raspberry Pi Pico WH maintains the same 21 mm × 51 mm form factor and GPIO layout as other Pico-family boards. It exposes 26 multi-function 3.3 V GPIO pins, including ADC-capable pins, and supports a wide range of digital peripherals and programmable I/O.

Power and programming are handled via the Micro-USB B connector, with additional options for external power sources or battery operation. The board also includes a 3-pin ARM SWD debug connector for low-level debugging.

Specifications

• Form factor: 21 mm × 51 mm

• PCB thickness: 1 mm

• Microcontroller: Raspberry Pi RP2040

• CPU: Dual-core Arm Cortex-M0+ @ up to 133 MHz

• Memory:

  • 264 KB on-chip SRAM

  • 2 MB external QSPI flash (XIP supported)

• Wireless:

  • 2.4 GHz Wi-Fi (IEEE 802.11n)

• GPIO:

  • 26 multi-function GPIO pins

  • 23 digital-only

  • 3 GPIO with ADC capability

• ADC:

  • 12-bit, up to 500 ksps

• USB:

  • USB 1.1 controller (device and host support)

• Peripherals:

  • 2 × UART

  • 2 × SPI

  • 2 × I²C

  • 16 × PWM channels

  • 1 × timer with 4 alarms

  • 1 × real-time clock (RTC)

  • 2 × PIO blocks with 8 state machines

• I/O voltage: 1.8 V – 3.3 V

• Power input:

  • Via Micro-USB

  • External supply or battery supported