Board Specifications Based on Raspberry Pi Pico, Raspberry Pi Pico W comes with a wireless communication module. The wireless module hardware uses Infineon's CYW43439 wireless chip, which supports Wi-Fi 4 wireless networks, making it the perfect solution for wireless network control and communication. Key features include: 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 Wi-Fi 4 wireless networks 264KB of SRAM, and 2MB of on-board Flash memory Castellated module allows soldering direct 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 * Note: the Pico WH is the official version with pre-soldered header, no castellated holes design, can only be connected to the carrier board via pin header.