RP2040 microcontroller chip designed by Raspberry Pi in the United Kingdom ^^ Dual-core Arm Cortex M0+ processor, flexible clock running up to 133 MHz ^^ 264KB of SRAM, and 2MB of onboard Flash memory Onboard FPC 8PIN connector, adapting USB Type-C port via adapter board ^^ 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, up to 20 multi-function GPIO pins ^^ Supports FSK, GFSK, LoRa modulation, featuring better anti-blocking and ultra-long distance communication ^^ With -148dBm high reception sensitivity and programmable emit power up to 22dBm ^^ Supports preamble detection, with CRC, up to 256 bytes data packet engine ^^ Comes with online resources and manual (example in C)