MAX485/3485/13487 TTL to RS485 Transceiver Module, 3.3V/5V Compatible, Single & Bidirectional Communication, UART Serial Converter for Microcontroller and Industrial Applications (MAX3485)

RS-485 differential communication offers wide common-mode rejection and long-distance transmission stability, significantly improving communication range. Depending on the cable used, the maximum communication distance in the RS485 protocol can reach 1000 meters, making it widely used in industrial automation, building intercoms, smart meters, security monitoring, and other scenarios requiring multi-node, long-distance, interference-resistant half-duplex or full-duplex communication. MAX3485 Module: 3.3V Unidirectional MAX485 Module: 5V Unidirectional MAX13487 Module: 5V Bidirectional Product Parameters: 1. Operating Voltage: 3.0-3.6V (MAX3485) 4.75V~5.25V (MAX485, MAX13487) 2. Indicator Light: Power indicator (red) 3. Dimensions: 19.3*13.3mm 4. Pin Spacing: 2.54mm, 15.2mm spacing between two rows of pins Note: Product dimensions are measured manually and may have errors. 5. Max Communication Rate: MAX3485: 12Mbps MAX485: 2.5Mbps MAX13487: 500kbps Module Features: Onboard RS-485 chip, a low-power, slew rate-limited transceiver for RS-485 communication. Features TTL to RS-485 signal conversion, or RS-485 to TTL signal conversion, and vice versa. Can convert microcontroller serial port and other TTL serial port signals to RS485 signals, enabling networking or long-distance communication. Features serial port pins and direction control pins. Includes a 120-ohm matching resistor.

• Multi-Chip Compatibility: Supports MAX485, 3485, and 13487 transceiver chips, ensuring flexible integration with various devices and communication protocols.
• 3.3V/5V Wide Voltage Support: Operates reliably with both 3.3V and 5V logic levels, suitable for most microcontrollers, Arduino, and Raspberry Pi projects.
• Single & Bidirectional Communication: Offers both unidirectional and bidirectional RS485 serial communication modes for versatile usage in different scenarios.
• Stable & Reliable Data Transfer: Delivers robust and noise-resistant performance, making it ideal for industrial control, automation, and long-distance data transmission.
• Easy Integration & Compact Design: Simple pinout, compact module design, and clear labeling for hassle-free installation and quick prototyping.