Bigtreetech Tft35 E3 V3.0.1 Graphic Smart Display Controller Board For Ender 3 Compatible With Skr Mini E3 V3.0, Skr 2, Skr 3, Skr Pro V1.2, Octopus V1.1 Motherboard1.Product characters: 1)Use the light-emitting encoder, press the bright blue light, if not, it will not light, Full of technology;2)TFT touch screen mode:serial port screen RS232 port;..