Using the RP2040 microcontroller chip officially designed by for Powered by a dual-core ARM M0+ processor running at up to 133MHz flexible clock Built-in 264KB and 2MB onboard Flash Features Bluetooth 5.1 dual-mode functionality The onboard Bluetooth module uses universal serial port AT control, allowing you to get started quickly. RP2040-BLE is a mini RP2040 development board with Bluetooth 5.1 dual-mode function, universal serial port AT control, and can realize Bluetooth wireless communication applications. It leads to 14 multi-functional GPIO pins in a very small form factor, and the edge of the PCB adopts half-hole technology, which can be easily and quickly integrated into the project. Stamp hole design can be directly welded and integrated into the base plate designed by the user. Drag-and-drop downloader recognized as mass storage via USB 14 GPIO pinouts of RP2040 Various hardware peripherals 2 SPIs 2 I2C 2 UARTs 3 12-bit ADCs 14 controllable PWM channels On-chip built-in temperature sensor On-chip accelerated floating point library 8 programmable I/O (PIO) state machines for custom peripheral support Due to different batches, the appearance, color and printed words of the product , which not affect the use. Colour:Blue Material:PCB Package Contents: 1 * development board 1 * Adapter Board 1 * FPC Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.