Tail485 is a TTL-RS485 converter designed for ATOM series controller, used for converting TTL level to RS485 level. RS485 is a communication protocol standard that defines the electrical characteristics of drivers and receivers in a serial communication system. It supports multi-point systems and is widely used in the industrial field. When project devices require communication control through RS485, using Tail485 for interface conversion would be a great choice.Tail485 is internally integrated with a DC/DC step-down voltage regulator chip, which can directly convert the 12V voltage of RS485 to 5V for Type-C interface power supply, eliminating the hassle of separate power supply.