Bigtreetech Tft70 V3.0 Graphic Smart Display Controllers For Creality Ender 3, Product name: BIGTREETECH TFT70 V3.0 1. Product parameters: Appearance size: 196*100mm Installation size: 188*92mm MCU: GD32F407VET6 Screen display area: 153.84*85.776mm Screen resolution: 800 (H)*3 (RGB)*480 (V) Number of screen backlights: 21 white LED lights Power input: DC 5V Logic voltage of SD card: 3.3V and 5V (e.g. motherboard supporting MEGA2560 main control chip, higher compatibility) 2. Description of the indicator lights on the motherboard: After the motherboard is powered on: a. D6 red light is the power indicator: the red light is on, indicating that the power supply is normal; b. The red light of D4 is the indicator light for SD card detection: it is always on when the SD card is inserted, and goes out after being pulled out. 3. Motherboard interface description: a. When using the class 12864 screen mode, connect with EXP1 and EXP2 on the motherboard; b. When using the serial port screen mode, connect to the TFT or AUX-1 on the motherboard through RS232; c. The two modes can be switched by one key. The specific operation is: long press the encoder for about 3S until the mode selection page appears, then select the mode and press it. 1. Adopt 32-bit main frequency 168MHz ARM level Cortex-4 series GD32F407VET6 main control chip. Upgrade the firmware by SD card.It is easy and convenient to operate. 2. Higher compatibility, there are two working modes for UART serial screen and 12864 screen. 3. Reserve WIFI port, and WIFI function is realized by external WIFI module; Reserve the extension port of filament breaking detection (FIL-DET); 4. The LCD12864 mode includes EXP1, EXP2, and EXP3; among them, EXP1 and EXP2 are the LCD screen interfaces of common motherboards. The EXP3 is the LCD screen interface used by the E3 series motherboards (such as: SKR MINI E3, SKR E3 DIP, etc.). 5. Reserve the extension port of automatic shutdown after printing (PS-ON).