MCU TTL to module RS485 485 to serial port UART level mutual conversion hardware automatic flow control

TTL to RS485 moduleModule highlights: (1) perfect compatibility of 3.3V and 5.0V power (2) 3.3V and 5.0V perfect signal compatibility (3) absolute adopt imported chips, industrial design, strong anti-interference ability, on time the same, adopting more effective lightning protection design, 485 can be used in industrial fields and fields under harsh environment, working temperature 40 to + 85, transmission distance km (With cable test 850 m 2*1.5, recommend use in 800 meters, more than 800 meters please add repeater) (4) half -hole process design, plate thickness 0.8mm, can be easily as a composite plate, can also be used for welding terminals (5) has RXD lamp, TXD signal indicator, transmit and receive a panoramic view of the statusModule features: (1) This module is fully considered485BusLightning protection designAnti-interference design when long-distance transmission in the field, the "earth" module is connected to earth , which can play an excellent role in anti -interference and lightning protection. 485bus is safer; Internal short-distance transmission can not access the earth. (2) with standard2.54Spacing design to facilitate both your development (3 has 120Ou matching resistance, short connetr0can match the resistance, long-distance transmission is recommended. (4 supports multi-machine communication, allows access to the most 128A devices in the bus (5 of these modules can be hot plug, no swap signal plug phenomenon of the other 485 chips (6 large areas put copper, prevent signal interference