3pcs TTL to RS485 Module Serial Port MCU Automatic Flow Control Module

Description This transmitter module realizes the mutual conversion between TTL signal and RS485 signal but we must know that 485 is a half duplex communication which can achieve two way communication but not in both directions at the same time it must be carried out alternately that is to say each section of the communication channel can be the sender or the receiver but at the same time information There can only be one transmission direction It realizes the automatic flow control of RS485 signal and the automatic switching of receiving and receiving directions It is as simple to use this module as you operate the serial port Baud rate 110 256000 BPS Features Wide voltage supply 3 0V 30V limit voltage 33V recommended to use within 30V the minimum voltage should be higher than 2 8V Compatible with 3 3V and 5 0V signals both can match the module Excellent EMC and EMI performance Strong anti jamming ability and strong 485 lightning protection design working temperature is 40 C to 85 C With terminal and silicone wire it is very convenient to use With RXD and TXD signal indicators This module fully considers the lightning protection design and anti interference design of 485 bus It has very high EMC electromagnetic compatibility and EMI electromagnetic anti interference performance When long distance transmission in the field connecting the earth end of the module to the earth can play a very good anti interference and anti lightning role making