Introduction
Raspberry Pi Pico W is a low-cost but flexible RP2040 development platform officially designed by Raspberry Pi. It is a wireless upgrade version of Raspberry Pi Pico. It has all the features of Pico and also has a 2.4GHz wireless interface.

Features
RP2040 microcontroller chip designed by Raspberry Pi in the United Kingdom
Dual-core Arm Cortex M0+ processor, flexible clock running up to 133 MHz
Onboard Infineon CYW43439 wireless chip, supports 2.4GHz Wi-Fi
264KB of SRAM, and 2MB of onboard Flash memory
Castellated module allows soldering directly to carrier boards
USB 1.1 with device and host support
Low-power sleep and dormant modes
Drag-and-drop programming using mass storage over USB
26 × multi-function GPIO pins
2 × SPI, 2 × I2C, 2 × UART, 3 × 12-bit ADC, 16 × controllable PWM channels
Accurate clock and timer on-chip
Temperature sensor
Accelerated floating-point libraries on-chip
8 × Programmable I/O (PIO) state machines for custom peripheral support