Unique dual-core, dual-architecture, equipped with dual-core ARM -M3 processor and dual-core Hazard 3 RISC-V core processor, clock running frequency up to 150MHZ. Built-in 520KB and 4MB on-chip Flash. Onboard FPC 8PIN interface, USB Type-C interface can be brought out through the adapter board. Stamp hole design, can be directly soldered and integrated into the user's self-designed baseboard. USB 1.1 host and device support. Support low-power sleep and hibernation modes. Can be identified as a large-capacity storage through USB for drag-and-drop download of programs. Lead out 28 multi-function GPI0 pins (20 can be brought out through pin headers, and the rest can only be soldered lead out. 2 SPI, 2 I2C, 2 UART, 4 12-bit ADC, 16 controllable PWM channels. Accurate on-chip clock and timer. Temperature sensor. On-chip accelerated floating-point library. 12 programmable IO (PIO) state machines for custom peripheral support. Colour:blue Material:PCB The actual product may have slight color difference or difference, which not affect the use Package Contents: 1 * Mini Development Board 1 * adapter board 1 * FPC line 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.