Guide of replacing the motherboard of ender3 with BTT SKR MINI E3 V2.0 and BTT TFT35 E3 V3.0

BTT SKR MINI E3 V2.0 and BTT TFT35 E3 V3.0 was designed by BIGTREETECH. We are committed to easy printing, easy life.

BTT SKR MINI E3 V2.0
1.The TMC2209 driver use same physical UART port, which save IO and increase the stability of motor drivers.
2.We increase an double Z-axis interface on the motherboard which can work on printer with single or double Z-axis.
3.We set a EEPROM( AT24C32) on the board , so data storage is more stable.
4.Printed circuit boards of SKR MINI E3 V2.0 have 4 layers, which prolong the life of this board.
5.Power chip is MP1584EN and increase the current output which can reach to 2.5A.
6.We add protective device to interface of thermistor.
7.We also set two numerical control fan and a interface (PS-ON) for automatic shutdown after printing.
8.SKR MINI E3 V2.0 also supports BL touch, filament run-out sensor, power-off resumed printing, and automatic shutdown after printing.

BTT TFT35 E3 V3.0
1.ARM Cortex-M3 series STM32F207VCT6 chip with 32-bit CPU 120MHz;
2.Upgrade the firmware by SD card. It is easy and convenient to operate.
3.This display board has higher compatibility. Users can select two work modes: UART serial port screen mode and 12864 screen mode.
4.Serial port screen mode supports two printing modes: SD card and U disk.
5.Reserve WIFI port, and WIFI function is realized by external WIFI module；
6.Reserve the extension port of filament breaking detection (FIL-DET)；
7.Reserve the extension port of automatic shutdown after printing (PS-ON);；
8.LCD12864 mode uses EXP1, EXP2 and EXP3. EXP1 and EXP2 are LCD screen ports of normal motherboard. EXP3 is the LCD interface used by E3 series motherboard (such as SKR MINI E3 V1.2, SKR E3 DIP V1.1, etc.) ；

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Видео Guide of replacing the motherboard of ender3 with BTT SKR MINI E3 V2.0 and BTT TFT35 E3 V3.0 канала BIGTREETECH