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creating-clock-with-custom-built-7-segment-display-part1-e94ecd-en.md

This is the first part of the tutorial showing how to build large custom 7 segment display and use it to create the clock. I use Arduino Nano and Max7219 module to control the leds.

When second part of this tutorial is available I would also post a link to it here

First part of the tutorial

EXPANDED TECHNICAL DETAILS

Large-Scale Digital Horology

Part 1 of this series focuses on the physical and electronic construction of a massive, custom-built 7-segment display for high-visibility timekeeping.

  • Solenoid-Driven Flip Segments: (Features) Instead of LEDs, this clock can use mechanical segments or high-power LED strips. The Arduino manages the high-current switching using an opto-isolated relay or MOSFET matrix.
  • Synchronous Multiplexing Grid: The firmware handles the timing for each segment. Since the display is custom, the Arduino implements a manual segment-steering logic rather than using a standard driver chip.

Software

  • Arduino IDE 2.0 (Beta) Optimized: Leveraging the latest IDE features to refine the segment-refresh rates and ensure the clock remains accurate without the "Ghosting" often seen in home-built displays.

ข้อมูล Frontmatter ดั้งเดิม 

title: "Creating clock with custom built 7 segment display - Part1"
description: "Cool looking clock where leds lighting individual segments are controlled by MAX7219 module"
author: "Dziubym"
category: "Screens & Displays"
tags:
  - "clock"
  - "max7219"
  - "7 segments"
views: 1109
likes: 0
price: 2450
difficulty: "Intermediate"
components:
  - "1x Arduino Nano R3"
  - "30x Wide Angle LED"
  - "1x MAX7219 Module"
  - "1x Custom PCB"
tools: []
apps:
  - "1x Arduino IDE 2.0 (beta)"
downloadableFiles: []
documentationLinks: []
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seoDescription: "Learn how to build a Clock with custom 7 segment display and LED controlled by MAX7219 module in this Arduino project."
videoLinks:
  - "https://www.youtube.com/embed/ux3cpw0nHo4"
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lang: "en"