---
title: "ATOMIC PoE Base W5500 (SKU: A091)"
url: "https://maker.wiznet.io/Benjamin/resellers/atomic-poe-base-w5500-sku-a091/"
markdown_url: "https://maker.wiznet.io/Benjamin/resellers/atomic-poe-base-w5500-sku-a091/md"
type: "VAR: Value-Added Reseller Products"
author: "M5STACK"
author_url: "https://shop.m5stack.com/products/atomic-poe-base-w5500"
editor: "WIZnet"
editor_url: "https://maker.wiznet.io/"
original_author: "M5STACK"
original_url: "https://shop.m5stack.com/products/atomic-poe-base-w5500"
published: "2024-03-14"
language: "en"
hardware: ["WIZnet W5500"]
likes: 0
views: 687
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# ATOMIC PoE Base W5500 (SKU: A091)

> The Atomic PoE Base is an Ethernet controller for ATOM series controllers, featuring a W5500 chip

Original author: M5STACK (source: https://shop.m5stack.com/products/atomic-poe-base-w5500)

## Components

- **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/))

## Documents and links

- [Atomic PoE Base Remote control LED(ATOM Lite/ATOM Matrix)](https://github.com/m5stack/M5Atom/tree/master/examples/ATOM_BASE/ATOM_PoE) (code)
- [Atomic PoE Base HTTP Example(AtomS3)](https://github.com/m5stack/M5AtomS3/tree/main/examples/AtomicBase/AtomicPoE/HTTP) (code)
- [Schematic](https://static-cdn.m5stack.com/resource/docs/products/atom/Atomic%20PoE%20Base/img-4ac6de86-bc9d-4f19-ac77-abd6769fb36a.webp) (schematics)
- [PinMap](https://static-cdn.m5stack.com/resource/docs/products/atom/Atomic%20PoE%20Base/pinMap-8e9fc1e5-c177-4cf9-8cb9-a4007eeb99a5.png)

## Article

## Description

**Atomic PoE Base** is an Ethernet controller base specifically designed for the ATOM series main controller. It is equipped with an Ethernet (PoE) module, allowing it to receive power directly from a PoE hub or switch. This eliminates the need for a separate power supply, reducing infrastructure costs and simplifying setup.

The base features the embedded W5500 Ethernet controller, which integrates the TCP/IP protocol stack. This controller provides 8 independent hardware sockets, allowing for simultaneous communication with multiple devices or services. The Ethernet data link layer (MAC) and physical layer (PHY) support 10/100M Ethernet, ensuring reliable and fast network connectivity.

With its capabilities, Atomic PoE Base offers a convenient internet connectivity solution for embedded systems. It meets the wired network access requirements in practical production environments, making it suitable for a wide range of applications.

## Features

- Applicable to Atom Lite/Atom Matrix/AtomS3/AtomS3 Lite

- Supports PoE IEEE802.3 AF

- Wired Ethernet Access

- 8 independent hardware sockets

- Supports TCP、UDP、ICMP、IPv4、ARP、IGMP、PPPoE

- Integrated 10BaseT / 100Base-T Ethernet PHY

## Includes

- 1x Atomic PoE Base

## Applications

- Remote control

- Wired Internet connection

## Specification

| **Resources** | **Parameters** |
| --- | --- |
| Ethernet Chip | W5500 |
| Supported Protocols | TCP、UDP、ICMP、IPv4、ARP、IGMP、PPPoE |
| PoE Power Supply | Idle pin power supply(10M/100M Ethernet),J4&J5(VC-),J7&J8(VC+) |
| PoE Spec | IEEE802.3 AF |
| Operating temperature | 0-40°C |
| Product Size | 64*18*18mm |
| Package Size | 136*92*20mm |
| Product Weight | 17g |
| Package Weight | 20.5g |

---

Source: https://maker.wiznet.io/Benjamin/resellers/atomic-poe-base-w5500-sku-a091/