Feature: Use low-power dual-core 32-bit CPU, which can be used as an application processor. The main frequency is up to 240MHz, and the computing power is up to 600 DMIPSSupport UART/SPI/I2C/PWM/ADC/DACSupport TF card (4G Max), STA/AP/STA+AP working mode Embedded Lwip and FreeRTOS