MAX485 TTL to RS485 Converter Module – Low Power Differential Transceiver

The MAX485 TTL to RS485 Converter Module is a compact, high-efficiency transceiver designed for reliable long-distance communication. Built around the MAX485 chip, this module allows seamless conversion between TTL logic and RS-485 differential signals—ideal for industrial and commercial network systems. It supports low power consumption and slew-rate limited data transmission, making it perfect for noise-sensitive environments.

This module is essential for enabling microcontrollers like Arduino, Raspberry Pi, and ESP boards to communicate over RS-485 networks. The onboard terminal block simplifies wiring, while the pin headers provide easy MCU integration. With support for multi-drop communication, up to 32 devices can share a single bus line over distances up to 1.2 kilometers, making it ideal for automation, building control, and sensor networks.

🔧 Key Features

• TTL to RS485 Conversion: Facilitates long-distance serial communication
• MAX485 IC: Industry-standard low-power transceiver
• Multi-device Support: Up to 32 devices on a single RS485 bus
• Slew-Rate Limited: Improves noise immunity over long cables
• Convenient Wiring: 5.08mm terminal block for RS485 lines
• Compact Design: Easy to integrate with embedded systems

📐 Technical Specifications

📌 Applications

• Industrial Communication: Enables stable data transmission in factories and automation systems
• Microcontroller Projects: Used with Arduino, Raspberry Pi, STM32, ESP32
• Sensor Networks: Connect multiple sensor nodes in a linear RS-485 setup
• Home Automation: Build long-range wired communication between smart devices

💡 Benefits

• Reliable long-distance communication up to 1.2km
• Low power and low interference
• Multi-device bus support
• Simple wiring and microcontroller interfacing

📦 Package Includes

• 1 × MAX485 TTL to RS485 Converter Module