Raspberry Pi Pico W is a microcontroller board based on the Raspberry Pi RP2040 microcontroller chip. RP2040 Designed by Raspberry Pi, RP2040 features a dual-core Arm Cortex-M0+ processor with 264KB internal RAM and support for up to 16MB of off-chip Flash. A wide range of flexible I/O options includes I2C, SPI, and — uniquely — Programmable I/O (PIO). These support endless possible applications for this small and affordable package. Specifications RP2040 microcontroller with 2MB of flash memory Dual-core Arm Cortex M0+ processor, flexible clock running up to 133 MHz 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 Real Time clock and timer with 4 alarms on-chip Temperature sensor Accelerated floating-point libraries on-chip 8 × Programmable I/O (PIO) state machines for custom peripheral support 2.4GHz 802.11n wireless LAN 3 × User controllable WL_GPIO pins Documents Raspberry Pi Pico W product brief Raspberry Pi Pico W Datasheet Connecting to the internet with Raspberry Pi Pico W