---
title: "Squama Ethernet – Arduino W5500 Ethernet Board"
url: "https://maker.wiznet.io/WIZnet/resellers/squama-ethernet-%E2%80%93-arduino-w5500-ethernet-board/"
markdown_url: "https://maker.wiznet.io/WIZnet/resellers/squama-ethernet-%E2%80%93-arduino-w5500-ethernet-board/md"
type: "VAR: Value-Added Reseller Products"
author: "WIZnet"
original_url: "https://www.seeedstudio.com/Squame-Ethernet-Arduino-W5500-Ethernet-Board-p-4823.html"
published: "2023-02-20"
language: "en"
likes: 3
views: 243
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# Squama Ethernet – Arduino W5500 Ethernet Board

> Squama Ethernet - Arduino W5500 Ethernet Board

Original source: https://www.seeedstudio.com/Squame-Ethernet-Arduino-W5500-Ethernet-Board-p-4823.html

## Article

**INTRODUCTION**

Squama Ethernet is the first product in the Squama series. Squama Ethernet integrates a high-performance microcontroller based on Cortex M0+ and an Ethernet control chip W5500, which can be used by users to develop Ethernet applications.

**FEATURES**

- Powerful CPU: ARM Cortex-M0+ MCU running at up to 48MHz (ATSAMD21G18)

- Various Hardwired TCP/IP Protocols support: TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE

- Powerful Ethernet control chip W5500

- Flexible compatibility: Compatible with Arduino IDE

**TECHNICAL DETAILS**

Squama is a series of products. This series of products have a standard appearance, with a general size of 62x30cm. The series integrates an MCU and peripherals with a communication function, which is suitable for IoT-related applications.Squama Ethernet is the first product in the Squama series. Squama Ethernet integrates a high-performance microcontroller based on **Cortex M0+** and an Ethernet control chip **W5500**, which can be used by users to develop Ethernet applications.**WS2812 LED** and user buttons are also integrated on the board, which can facilitate some interaction. More importantly, Squama Ethernet supports **PoE** (Power Over Ethernet), which makes the wiring more concise. Only one network cable is needed to complete signal transmission and power supply.Squama Ethernet uses the **Arduino Zero like bootloader**, you can use Arduino IDE to develop your application easily.

Note!!!

**This version doesn't include the PoE Cape.HOW TO USE**

## **Specifications**

- MCU: ARM Cortex-M0+ CPU running at up to 48MHz

- Clock speed: 48MHz

- Flash memory: 256KB

- RAM: 32KB

- Input voltage: 5V via USB and 48~57V via PoE

- Output Current @ 5V: 2A

- Size: 62×30 mm

- Weight: 15g (without PoE), 20g (with PoE)

- 8 independent sockets simultaneously

- High-Speed Serial Peripheral Interface(SPI MODE 0, 3)

- Internal 32Kbytes Memory for TX/RX Buffers

- 10BaseT/100BaseTX Ethernet PHY embedded

- Supports Auto-Negotiation (Full and half-duplex, 10 and 100* based )

- Not supports IP Fragmentation

- WS2812B Led

- Reset Button and User Button

- Grove connector for I2C and UART

- Arduino Zero bootloader

- Supports Power-down mode

- Supports Wake on LAN over UDP

## **Hardware Overview1. LED indicators:**

- S:

- P: Power

- L: D13

**2. RJ45 Connector, 10/100M3. WS2812B LED, connected to D124. User button, connected to D116. Pinout17. I2C8. UART (Use Serial2 in the code)9. TypeC connector for programmingA. Pinout2*B. Reset ButtonC. ATSAMD21G18 chip**

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Source: https://maker.wiznet.io/WIZnet/resellers/squama-ethernet-%E2%80%93-arduino-w5500-ethernet-board/