---
title: "PRODINo ESP32 Ethernet v1 – W5500-enabled Industrial IoT Board"
url: "https://maker.wiznet.io/sophia/resellers/prodino-esp32-ethernet-v1--w5500-enabled-industrial-iot-board/"
markdown_url: "https://maker.wiznet.io/sophia/resellers/prodino-esp32-ethernet-v1--w5500-enabled-industrial-iot-board/md"
type: "VAR: Value-Added Reseller Products"
author: "KMP Electronics Ltd"
author_url: "https://kmpelectronics.eu/shop/prodino-esp32-ethernet/"
editor: "WIZnet"
editor_url: "https://maker.wiznet.io/"
original_author: "KMP Electronics Ltd"
original_url: "https://kmpelectronics.eu/shop/prodino-esp32-ethernet/"
published: "2025-10-28"
language: "en"
hardware: ["Espressif ESP32", "WIZnet W5500"]
likes: 0
views: 514
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# PRODINo ESP32 Ethernet v1 – W5500-enabled Industrial IoT Board

> Industrial IoT board with ESP32-WROOM-32 + WIZnet W5500 Ethernet, RS485, 4 relays & opto-isolated inputs. Wired network made easy.

Original author: KMP Electronics Ltd (source: https://kmpelectronics.eu/shop/prodino-esp32-ethernet/)

## Components

- **Espressif ESP32** x 1 ([docs](https://www.espressif.com/en/products/socs/esp32))
- **WIZnet W5500** x 1 ([docs](https://docs.wiznet.io/Product/Chip/Ethernet/W5500))

WIZnet parts: W5500 ([Datasheet](https://docs.wiznet.io/Product/Chip/Ethernet/W5500/datasheet?utm_source=maker&utm_medium=project&utm_campaign=w5500), [product hub](https://maker.wiznet.io/products/w5500/))

## Article

**Hardware Components:**

- ESP32-WROOM-32 module (dual-core 32-bit LX6, 240 MHz, SRAM 520 KB, Flash 4 Mb)

- WIZnet W5500 Ethernet controller (hard-wired TCP/UDP/IPv4 stack)

- 4 relays (2-pole NO/NC) for switching high-power AC/DC loads (250 V/5 A)

- 4 optical-isolated digital inputs (3-30 V) for noisy/industrial environments

- RS485 communication interface up to ~1200 m cable length, connecting legacy systems

**Project Overview:**
This board merges wired Ethernet connectivity via WIZnet’s W5500 with industrial I/O features (relays, opto-isolated inputs, RS485) and ESP32's wireless capabilities (WiFi/Bluetooth). It’s designed for IoT automation in factories, fixed installations, sensor/actuator networks, where stable wired network is preferred.

**Company Info (Vendor):**
KMP Electronics Ltd (Bulgaria) — Founded 2013 by hardware/firmware/software enthusiasts; specializes in developing Arduino-compatible/IoT boards and automation solutions.

ESP32-WROOM-32 + WIZnet W5500 이더넷, 릴레이, 광절연 입력, RS485 탑재. 유선 네트워크 기반 IoT 자동화 보드입니다.

**하드웨어 구성 요소:**

- ESP32-WROOM-32 모듈 (듀얼코어 32비트 LX6, 240 MHz, SRAM 520 KB, 플래시 4 Mb)

- WIZnet W5500 이더넷 컨트롤러 (TCP/UDP/IPv4 하드웨어 스택 탑재)

- 릴레이 출력 4개 (2-pole NO/NC)로 고전력 AC/DC 부하 스위칭 가능 (250 V/5 A)

- 광절연 디지털 입력 4개 (작동전압 3-30 V), 노이즈 환경 대응

- RS485 통신 인터페이스 (약 1200 m 케이블 길이까지), 기존 레거시 시스템 연계 가능

**프로젝트 전체 설명:**
이 보드는 WIZnet W5500 유선 이더넷 연결을 ESP32의 무선(와이파이/블루투스) 기능 및 산업용 인터페이스(릴레이, 광절연 입력, RS485)와 결합한 IoT 자동화용 보드입니다. 공장, 고정설치, 센서·구동 노드 환경 등에서 안정적인 유선 네트워크가 필요한 경우 최적입니다.

**업체 정보:**
KMP Electronics Ltd (불가리아) — 2013년에 설립된 하드웨어 / 펌웨어 / 소프트웨어 열정을 가진 엔지니어 그룹이 시작하였으며 Arduino 호환 IoT 보드 및 자동화 솔루션을 개발합니다.

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Source: https://maker.wiznet.io/sophia/resellers/prodino-esp32-ethernet-v1--w5500-enabled-industrial-iot-board/