
10 I/Os Relay Module – CPU Arduino NANO (Relay Output) delivers a compact and cost‑effective industrial control platform designed for monitoring, automation, and machine management. Built around the Arduino Nano microcontroller, this industrial relay controller combines programmable flexibility with standardized PLC-style connectivity. The hardware integrates multiple communication interfaces, including RS485 and Ethernet, enabling reliable data exchange across industrial networks. A rugged relay-based I/O architecture allows direct control of equipment such as pumps, fans, HVAC systems, and motor drivers. Open‑source hardware compatibility also enables rapid customization for automation projects, production lines, and smart facility control systems.
Open‑Source Industrial Control Platform
An Arduino Nano–powered automation controller provides a familiar development environment while delivering industrial‑grade I/O capability. The embedded microcontroller operates at 16MHz with onboard SRAM and EEPROM resources suitable for control logic, communication handling, and automation routines. Open‑source hardware architecture simplifies firmware customization and integration with existing development workflows. This programmable relay automation board therefore bridges maker‑level flexibility and industrial reliability, enabling engineers and system integrators to rapidly prototype monitoring systems, create custom PLC‑like solutions, and implement distributed control nodes within larger industrial networks.
Industrial Connectivity and Standardized Interfaces
This relay-based industrial I/O controller integrates multiple communication options designed for modern automation environments. RS485 connectivity supports long‑distance and noise‑resistant field communication, while Ethernet networking enables TCP/IP and Modbus TCP integration for industrial control systems. Standardized PLC connectors simplify wiring and deployment in electrical cabinets or machine control panels. Support for Modbus RTU further expands compatibility with industrial sensors, gateways, and SCADA platforms. Such versatile communication capability allows the automation module to function as a distributed controller, data acquisition node, or networked equipment management interface.
Flexible 10‑Channel Relay and Isolated I/O Design
A ten‑channel digital I/O structure enables reliable switching and monitoring for a wide range of automation tasks. Digital inputs accept signals from 3.3V to 24V DC, while opto‑isolated outputs improve electrical protection and system stability in industrial environments. Relay outputs provide safe switching of loads including motors, pumps, lighting systems, and alarm circuits. This multi‑channel industrial relay module therefore supports simultaneous sensing and actuation, making the hardware suitable for equipment automation, environmental monitoring, and distributed machine control installations.

Figure: Board overview of the 10 I/Os relay module controller

Figure: Industrial relay module interface layout

Figure: Hardware structure of the industrial I/O relay controller
Industrial automation systems benefit from a programmable relay controller capable of handling equipment control, signal monitoring, and network communication simultaneously. Typical deployments include machine automation, elevator systems, HVAC management, and production line supervision. This programmable industrial I/O board also suits pump control, fan regulation, alarm triggering, and AC or DC motor switching, providing a versatile control node for distributed automation and facility management solutions.