Raspberry Pi Pico W has been designed to be a low cost yet flexible development platform for RP2040, with a 2.4GHz wireless interface and the following key features: RP2040 microcontroller with 2MB of flash memory On-board single-band 2.4GHz wireless interfaces (802.11n) Micro USB B port for power and data (and for reprogramming the flash) 40 pin 21mmx51mm DIP style 1mm thick PCB with 0.1 through-hole pins also with edge castellations Exposes 26 multi-function 3.3V general purpose I/O (GPIO) 23 GPIO are digital-only, with three also being ADC capable Can be surface mounted as a module 3-pin ARM serial wire debug (SWD) port Simple yet highly flexible power supply architecture Various options for easily powering the unit from micro USB, external supplies or batteries High quality, low cost, high availability Comprehensive SDK, software examples, and documentation Dual-core Cortex M0+ at up to 133MHz On-chip PLL allows variable core frequency 264kByte multi-bank high-performance SRAM