Outputs ETH module
Outputs ETH module
COMPONENTS
PROJECT DESCRIPTION
Outputs ETH Module – Open-Source Ethernet Relay Board
The Outputs ETH Module is an open-source Ethernet relay board powered by the ATmega328PB MCU and W5500 Ethernet chip. It provides 8 opto-isolated relay outputs (COM/NO/NC), making it ideal for industrial automation, IoT, SCADA, and home automation.
Key features include:
Ethernet communication: HTTP server, MQTT client, Modbus TCP
Web interface for easy relay control and network configuration
Arduino IDE support (MiniCore 328PB, standard libraries)
Compact 100×150 mm PCB, 24 V DC power input
Compatible with Node-RED, Home Assistant, OpenHAB, PLC systems
With a build cost of around $40, the Outputs ETH Module offers a low-cost, flexible, and reliable solution for Ethernet-based relay control.
Design Drawing
schematic diagram
PCB
Documents
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schematic diagram
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