MAX485 TTL to RS485 converter module with green terminal block and blue PCB for Arduino ESP32 STM32 Raspberry Pi

MAX485 TTL to RS485 Converter Module for Arduino, ESP32, STM32 & Raspberry Pi

SKU AA119

$6.99 USD Shipping & tax calculated at checkout
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MAX485 TTL to RS485 converter module for Arduino, ESP32, STM32 and Raspberry Pi; converts UART serial to half-duplex RS485 A/B for Modbus, robotics, home automation and industrial control.

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Overview

Product Overview

TTL to RS485 converter module built around the MAX485, this board lets an Arduino translate standard UART serial signals into robust RS485 differential communication for longer cable runs and better noise immunity. By converting logic-level TX/RX data to the balanced A/B lines used on an RS485 bus, it supports reliable half-duplex links in electrically noisy environments. It is ideal for connecting microcontrollers to industrial sensors, smart meters, motor controllers, and PLC-style devices in automation, robotics, distributed sensor networks, and Modbus-style projects. Use it with Arduino, ESP32, STM32, or Raspberry Pi serial interfaces for multi-device communication, remote monitoring, and wired control system prototyping.

Questions & answers

Frequently asked questions

Yes, the MAX485 TTL to RS485 Converter Module works with Arduino, enabling UART serial communication to convert to RS485 differential signals for reliable multi-device communication. It is also suitable for ESP32, STM32, and Raspberry Pi.
The MAX485 module is pre-soldered for easy setup. Simply connect its TX/RX pins to your Arduino's serial interface to start converting UART signals to RS485 for robust communication over longer distances.
The MAX485 module typically operates using common TTL voltages compatible with microcontroller-based projects, like those involving Arduino. Always refer to your project's power requirements to ensure compatibility with the module's needs.
Yes, the MAX485 module is ideal for Modbus-style projects. Its design supports reliable half-duplex RS485 communication, making it suitable for automation, industrial systems, and projects requiring robust multi-device networking.
Ensure you've correctly connected the module's TX/RX pins to your microcontroller, and that your power supply matches the module's requirements. Check any project-specific wiring errors and consult the module's documentation for troubleshooting guidance.

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What's included

Features & Specs

MAX485 ChipBuilt around the MAX485 to convert TTL UART serial signals into RS485 differential communication.

UART InterfaceConnects standard TX and RX serial lines from a microcontroller to RS485 A and B bus wiring.

Half Duplex BusSupports half-duplex RS485 links for reliable multi-device serial communication.

Noise ImmunityEnables longer cable runs and better signal reliability in electrically noisy environments.

Board CompatibilityWorks with Arduino, ESP32, STM32, and Raspberry Pi serial or UART interfaces.

Industrial ConnectivityUseful for connecting industrial sensors, smart meters, motor controllers, and PLC-style devices.

Modbus ProjectsWell suited for Modbus-style communication, remote monitoring, automation, robotics, and wired control prototyping.

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