---
title: "Real Time Clock using NTP"
url: "https://maker.wiznet.io/rvl/contest/real-time-clock-using-ntp/"
markdown_url: "https://maker.wiznet.io/rvl/contest/real-time-clock-using-ntp/md"
type: "Contests"
author: "rvl"
author_url: "https://maker.wiznet.io/rvl/"
original_author: "rvl"
published: "2022-01-11"
language: "en"
hardware: ["WIZnet W5100S-EVB-Pico", "TDI.1400", "Breadboard", "Push Button switch", "Generic Jumper wires"]
likes: 0
views: 1777
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# Real Time Clock using NTP

> Real Time Clock using NTP

Original author: rvl

## Components

- **WIZnet W5100S-EVB-Pico** x 1: Wiznet RP2040 board ([docs](https://docs.wiznet.io/Product/Chip/Ethernet/W5100S/w5100s-evb-pico))
- **TDI.1400** x 1: Obsolete 4x7 segment display from Telefunken
- **Breadboard** x 1
- **Push Button switch** x 1
- **Generic Jumper wires** x 10

## Documents and links

- [code.py](http://maker.wiznet.io/wp-content/uploads/2022/04/wizclock.py) (code): for CircuitPython with the Adafruit libraries
- [simple "schematic"](http://maker.wiznet.io/wp-content/uploads/2022/04/schema.png) (schematics)
- [Video](https://www.youtube.com/video/jjteRe1PGD8)

## Article

## Work in progress

Not really finalized project yet! Just a quick test with Python and a surplus display I happened to have at hand. Software will be ported to Arduino or C later and then the actual fun part with interrupts and keeping sub-second synchronization begins.

### Picture of my initial test setup

![](https://maker.wiznet.io/uploads/2022/04/tn-300x188.png)

---

Source: https://maker.wiznet.io/rvl/contest/real-time-clock-using-ntp/