W5500 Ethernet development board TCP/IP hardware protocol stack STM32F103 core board control

E-net is zero core technology research and development of a scene control development board, the development board of hardware sampling modular design, 5V, 3.3v system made compatible, MIKRO is a big innovation, is also a big feature of the board, can support serial communication, SPI communication, I2C communication.Due to the low power consumption requirements, battery charging and discharging functions are added here to be used in mobile scenarios, such as positioning, back power functions.The on-board key OLED LCD can do simple man-machine interaction.