MAX485 RS485 to TTL Transceiver Module 5V for Arduino

Add RS485 serial communication to your Arduino or other 5V microcontroller project. This MAX485 module connects a UART interface to an RS485 bus for communication between devices. TECHNICAL SPECIFICATIONS • Transceiver: MAX485 • Supply: 5V DC • Logic level: 5V • Communication: half duplex (transmit or receive at a time) • Maximum chip data rate: 2.5Mbps; practical speed depends on cable length and wiring • Direction control: RE and DE pins PIN CONNECTIONS • VCC / GND: 5V supply / ground • DI: driver input; connect to controller TX • RO: receiver output; connect to controller RX • RE: receiver enable, active LOW • DE: driver enable, active HIGH • A / B: non-inverting / inverting RS485 bus connections COMPATIBILITY AND SETUP Designed for 5V logic. Use suitable level shifting before connecting the receiver output to a 3.3V-only input, such as on an ESP32 or Raspberry Pi. Your controller must manage transmit/receive direction using RE and DE. PACKAGE CONTENTS 1 x MAX485 RS485 transceiver module.