10 I/O Relay Module based on Arduino Nano (RS485, Ethernet, Modbus)

This 10-channel relay I/O controller is based on the Arduino Nano platform, offering a rugged solution for monitoring and automated switching. Equipped with Ethernet, RS485, and Modbus protocol support, it provides reliable networking options for both benchtop testing and remote automation. It is well suited to engineering students, makers, and industrial prototyping applications.

Arduino Nano core controller

The module is powered by an onboard Arduino Nano, enabling straightforward programming and integration with existing Arduino sketches and libraries. It bridges standard maker-friendly development tools with robust hardware interfacing.

Ten-channel relay switching

Equipped with 10 individual relay channels, the board can switch multiple loads and external circuits independently. This provides ample capacity for multi-point automation and control projects.

Wide-voltage digital inputs

Integrated digital inputs accept signal levels spanning from 3.3V up to 24V. This broad voltage range accommodates direct connections from microcontrollers, industrial sensors, and field equipment without extra level-shifting components.

Ethernet and RS485 connectivity

Onboard Ethernet and RS485 transceivers allow for flexible local-area network access and robust long-distance serial communication. These interfaces make the module adaptable to both networked installations and point-to-point serial loops.

Modbus TCP and RTU support

The controller supports industry-standard Modbus TCP and Modbus RTU protocols for seamless communication with SCADA systems, PLCs, and human-machine interfaces (HMIs). This ensures straightforward integration into wider control networks.