For more details: https://github.com/bigtreetech/BTT-TFT35-E3-V3.0
BIGTREETECH TFT35-E3 V3.0 is a medium size, dual-mode, ultra-clear 3D printing machine display launched by the 3D printing team of Shenzhen BIGTREE Technology CO., LTD., which can perfectly replace the original LCD screen of Ender3 printer.
*Description copied from Amazon*
Product characteristics ：
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）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.) ；
7）TFT touch screen mode：serial port screen RS232 port；
8）2 sets of UART serial port extension ports are reserved for DIY use.
2. Product Parameters ：
Appearance size：93*87mm
Installation size：Perfectly replaces the original LCD screen of Ender 3
Microprocessor：STM32F207VCT6
Power Input：DC 5V
SD card logic voltage：3.3V and 5V（Such as: support MEGA2560 main control chip motherboard, higher compatibility)
Notes：
1. When using 12864 screen mode, connect the port EXP1 and EXP2 to the motherboard. There is no touch function in this mode.
2. When using serial port screen mode, connect with TFT or AUX-1 on the motherboard via RS232. This mode has touch function；
3. Two work modes can be changed by one key. Press the encoder about 3seconds until the mode selection page appears, then press the encoder after selecting the mode.
There is no warranty/no returns/no exchanges on electronic components