MAX485 TTL to RS485 Converter Module

MAX485 TTL to RS485 Converter Module

The MAX485 TTL to RS485 Module is a compact communication interface module that converts TTL serial signals (UART) from microcontrollers into RS485 differential signals. It enables reliable long-distance data transmission and is widely used in industrial automation, sensor networks, home automation, and communication systems.

Key Features

• Based on the MAX485 low-power RS485 transceiver IC
• Converts TTL UART signals to RS485 differential signals
• Supports half-duplex communication
• Data transmission distance up to 1200 meters (ideal conditions)
• Operates on 5V DC power supply
• Low power consumption
• High noise immunity for industrial environments
• Supports multiple devices on a single RS485 bus

Technical Specifications

• IC: MAX485
• Operating Voltage: 5V DC
• Communication Standard: RS485
• Communication Mode: Half-Duplex
• Data Rate: Up to 2.5 Mbps
• Transmission Distance: Up to 1200m
• Interface: TTL UART (RO, RE, DE, DI)
• Operating Temperature: -40°C to +85°C

Pin Configuration

• VCC – 5V Power Supply
• GND – Ground
• RO – Receiver Output
• RE – Receiver Enable (Active Low)
• DE – Driver Enable (Active High)
• DI – Driver Input
• A – RS485 Data Line A
• B – RS485 Data Line B

Applications

• Industrial Control Systems
• PLC Communication
• Smart Metering
• Home Automation Networks
• Long-Distance Sensor Communication
• Arduino and Raspberry Pi Projects
• Modbus RTU Communication

Package Includes

• 1 × MAX485 TTL to RS485 Converter Module