Features:0. The type is V2.0. Upgraded of V1.21.ARM Cortex-M3 series STM32F103VCT6 chip with 32 - bit CPU 72MHz;
2.Integrate Keil MDK5 development environment with mainstream development tools; Support online debugging, more helpful for product development and performance optimization, C language development, low development threshold;
3.Update and configure firmware with SD card, easy to operate;
4.Support serial wifi
5.Support the functions of power off, continuous play, material failure detection, shutdown, etc.
