---
title: "RP2040_RTC_Alarm_Ethernet"
url: "https://maker.wiznet.io/WIZnet/projects/rp2040-rtc-alarm-ethernet/"
markdown_url: "https://maker.wiznet.io/WIZnet/projects/rp2040-rtc-alarm-ethernet/md"
type: "UCC: User Created Content"
author: "khoih prog"
author_url: "https://github.com/khoih-prog/RP2040_RTC/tree/main/examples/Alarm/RP2040_RTC_Alarm_Ethernet"
editor: "WIZnet"
editor_url: "https://maker.wiznet.io/"
original_author: "khoih prog"
original_url: "https://github.com/khoih-prog/RP2040_RTC/tree/main/examples/Alarm/RP2040_RTC_Alarm_Ethernet"
published: "2023-02-16"
language: "en"
hardware: ["WIZnet W5100"]
likes: 8
views: 277
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# RP2040_RTC_Alarm_Ethernet

> RP2040_RTC_Alarm_Ethernet

Original author: khoih prog (source: https://github.com/khoih-prog/RP2040_RTC/tree/main/examples/Alarm/RP2040_RTC_Alarm_Ethernet)

## Components

- **WIZnet W5100** x 1 ([docs](https://docs.wiznet.io/Product/Chip/Ethernet/W5100))

## Article

This is an Arduino library for **RP2040-based RTC**

The examples will demonstrate how to get the UTC time from NTP server, then update the RTC to make sure the time is perfectly correct.

```plaintext

```

**DOCUMENTS**

Code

code[![](https://oldmaker.wiznet.io/wp-content/themes/onepress/assets/images/icon-link.png)](https://github.com/khoih-prog/RP2040_RTC/blob/main/examples/Alarm/RP2040_RTC_Alarm_Ethernet/RP2040_RTC_Alarm_Ethernet.ino)

---

Source: https://maker.wiznet.io/WIZnet/projects/rp2040-rtc-alarm-ethernet/