●[Two Packs, Easy to Integrate] A real stamp hole design that can be welded directly and integrated onto a custom backplane. Built-in 264KB SRAM and 2MB on-chip flash ●[Dual Core ARM Cortex M0+, High Operating Frequency] Equipped with a dual core ARM Cortex M0+ processor, operating at a frequency of up to 133 MHz and a flexible clock. Accurate on-chip clock and timer. Supports USB 1.1 hosts and devices ●[Multi Function Pin] 29 Multi function GPIO pins, supporting configuration pin functions, allowing easy and flexible development and integration. Supports low-power sleep and hibernation modes. Can be recognized as mass storage for drag and drop download via USB ●[Support C/C++/MicroPython] Provide complete SDK, open source material tutorials, which are easy to use and can be quickly embedded into applications. Please contact our customer service for related tutorials ●Type-C interface, strong compatibility: 8 programmable I/O (PIO) state machines for customized peripheral support. There is a temperature sensor inside the chip to measure the temperature of the chip during operation