Industrial 8-Channel ESP32-S3 WiFi Relay Module (With POE)

The Waveshare ESP32-S3-ETH-8DI-8RO-C is an industrial-grade relay module designed to bring advanced edge computing and robust control to your automation projects. Built around the powerful dual-core ESP32-S3 processor, this module integrates 8 high-current relays and 8 digital inputs, alongside an onboard CAN bus interface, to act as the primary logic and control hub for smart factories, robotics, and advanced home automation networks.

Bridging the gap between modern IoT protocols and high-voltage industrial equipment often requires a messy web of microcontrollers, logic level converters, and isolation circuits that are prone to failure. This module solves that by packing bi-directional optocouplers, a built-in wide-voltage power supply, and multi-layered digital isolation into a single unit, allowing you to safely control heavy inductive loads directly from Wi-Fi, Ethernet, or CAN signals without risking your logic board.

Housed in a sturdy, rail-mountable ABS enclosure, this genuine Waveshare OEM module drops straight into standard electrical cabinets with minimal friction. It features premium screw terminals, integrated TVS diodes for surge protection, and a W5500 Ethernet chip for highly stable, low-latency wired networking, ensuring your critical systems remain online and interference-free in demanding environments.

Key Features

• Control heavy inductive and resistive loads securely with 8 mechanical relays capable of switching up to 10A at 250V AC or 30V DC, complete with optocoupler isolation to protect your digital logic from high-voltage feedback.
• Process complex automated routines locally using the formidable ESP32-S3 dual-core microcontroller, equipped with 16MB of Flash and 8MB of PSRAM to easily handle demanding MicroPython, C++, or Arduino scripts.
• Integrate seamlessly into automotive or industrial sensor networks with the onboard isolated CAN interface, providing reliable data transmission even in electrically noisy environments.
• Ensure unwavering network stability for critical infrastructure with the built-in W5500 Ethernet port, or go wireless using the native 2.4GHz Wi-Fi and Bluetooth 5 (BLE) capabilities.
• Read sensor states or physical switches safely via 8 flexible digital inputs, supporting both active and passive switching mechanisms with input tolerance up to 36V.
• Deploy into existing electrical panels in seconds thanks to the industrial ABS rail-mount enclosure and wide 7V to 36V DC input range.
• Customise your visual feedback using the onboard programmable RGB LED, giving you at-a-glance status updates (such as network connection or fault states) without needing an external display.
• Build with confidence knowing this is a genuine Waveshare OEM part, giving you the peace of mind of high-quality engineering backed by extensive documentation and long-term support.

Specifications