Some of board features as follow:
1. The board frame is specially for Ender3. Plug and play.
2. It packs ARM Cortex-M4 series STM32F407VGT6 chip with 32-bit MCU 168MHz, 1Mbytes Flash 192Kbytes SRAM + 4Kbytes backup SRAM
3. Integrated onboard TMC2209 with UART mode and reserves the sensorless homing interface.
4. Compatible with all BIGTEREETECH TFT and the original LCD12864 of Ender3.
5. Reserves the interface of Bltouch, filament detection, power outage recovery, shutdown after printing, and Neopixel.
6. Compatible with the firmware of Marlin and RepRapFirmware.