---
title: "UnoNet Arduino board with Ethernet (Atmega328PA)"
url: "https://maker.wiznet.io/irina/resellers/unonet-arduino-board-with-ethernet-atmega328pa/"
markdown_url: "https://maker.wiznet.io/irina/resellers/unonet-arduino-board-with-ethernet-atmega328pa/md"
type: "VAR: Value-Added Reseller Products"
author: "Invector Labs"
author_url: "https://www.tindie.com/products/invector/unonet-arduino-board-with-ethernet-atmega328pa/"
editor: "WIZnet"
editor_url: "https://maker.wiznet.io/"
original_author: "Invector Labs"
original_url: "https://www.tindie.com/products/invector/unonet-arduino-board-with-ethernet-atmega328pa/"
license: "Apache License 2.0 (Apache-2.0)"
published: "2022-10-04"
language: "en"
likes: 4
views: 983
comments: 1
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# UnoNet Arduino board with Ethernet (Atmega328PA)

> An Arduino Rev 3 compatible microcontroller board with on board Ethernet controller. This board uses the orginal ATMega328PA device.

Original author: Invector Labs (source: https://www.tindie.com/products/invector/unonet-arduino-board-with-ethernet-atmega328pa/)

## Components

- Software: **Arduino IDE** ([docs](https://www.arduino.cc/en/software))

## Documents and links

- [schematic](https://d3s5r33r268y59.cloudfront.net/datasheets/17842/2019-08-19-09-38-00/UnoNet-1.1-schematic.pdf) (schematics)

## Article

![](https://maker.wiznet.io/upload/ckeditor5/281305700%5F1664875744%2Epng)

## **Memory**

The ATmega328 has 32 KB Flash with 0.5 KB used for the bootloader, which is optiboot. It also has 2 KB of SRAM and 1 KB of EEPROM (which can be read and written with the EEPROM library).

All the Ethernet example sketches work as they do with the Ethernet shield but you have to make sure that you are using an updated Ethernet library that supports the W5500 ethernet device. Make sure to change the network settings for your network.

---

Source: https://maker.wiznet.io/irina/resellers/unonet-arduino-board-with-ethernet-atmega328pa/