1、Professional Design: for RP2040 BLE is a mini development board with Bluetooth 5.1 dual mode function and general purpose serial AT command control for Bluetooth wireless telecommunication applications. 2、GPIO Pins: 14 multi functional GPIO pins are drawn out in a very small board size, with half hole process on the edge of the PCB, which can be easily and quickly integrated into the project. 3、Advanced Chip: Adopting the for RP2040 microcontroller chip officially designed by for RPi, based on for RP2040 development, split USB interface design. 4、Superior Processor: Microcontroller development board equipped with a dual core for ARM for Cortex M0 + processor, running frequency up to 133MHz flexible clock. 5、On Board Flash, Stamp Hole Design: Built in 264KB SRAM and 2MB on board Flash, stamp hole design, can be directly soldered and integrated into the user's own design of the backplane.