1.RP2040 microcontroller chip designed by Raspberry Pi in the United Kingdom. Dual-core Arm Cortex M0and processor, flexible clock running up to 133 MHz 2.264KB of SRAM, and 2MB of on-board Flash memory. USB-C connector, keeps it up to date, easier to use 3.Castellated module allows soldering direct to carrier boards. USB 1.1 with device and host support. Low-power sleep and dormant modes 4.Drag-and-drop programming using mass storage over USB. 29 × multi-function GPIO pins (20× via edge pinout, others via solder points). 2 × SPI, 2 × I2C, 2 × UART, 4 × 12-bit ADC, 16 × controllable PWM channels Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.