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√Thank you for your support, If you have any question within using,pls feel free to contact "BIGTREETECH Direct" via Amazon directly, we till get back to you within 24 hours. √Ⅰ. Introduction BIGTREETECH TFT50 V3.0 is a display screen with middle size, two operation mode and super clear launched by the 3D printing team of Shenzhen BIGTREE technology co., LTD., which can perfectly replace LCD12864. √1. Features : √1. MCU: ARM 32 bit and 120MHz STM32F205/207VCT6 of Cortex-M3 series. √2. More convenient operation: upgrading the firmware by SD card. √3. Stronger compatibility: two working model, UART screen and screen of 12864 types. √4. UART screen supporting SD card and U disk. √5. Having WIFI port, plugging WIFI module can achieve WIFI function. √6. Having filament runout detection function port (FIL-DET). √7. Having function port for automatic shutdown after printing(PS-ON); √8. LCD12864 mode including EXP1、EXP2、EXP3,EXP1and EXP2 is for LCD screen of ordinary motherboard, and EXP3 is for LCD screen of E3 series(like: SKR MINI E3、SKR E3 DIP etc.). √9. TFT touch screen: UART screen RS232 port. √10. Having 2 UART port for users DIY. √2. Parameters : √Appearance size: 149*77.5mm √Installation size: 141*69.5mm √MCU: STM32F205/207VCT6 √Screen display area: 110.88*62.832mm √Display resolution: 480(RGB)*272 √Backlight: 12 white LED lights √Power input: DC 5V √Logic voltage of SD card: 3.3V and 5V (like: supporting motherboard with control chip MEGA2560, with stronger compatibility) √Notice: Explanation: √1. Connecting EXP1 and EXP2 on motherboard when using screen of 12864 types. √2. Connecting the TFT or AUX-1 on motherboard by RS232 when using UART screen mode. √23. Two model switch: press the encoder about 3S until the mode selection page appears, then select the mode and press it.