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Digital And Binary Clock With Two LED Matrix And RTC © CC BY-NC-SA

Digital and binary Clock using Arduino, RTC, two LED matrix, operating in 4 different modes (AM-PM / 24 HS / 02 types of fonts).

  • 7,261 views
  • 23 comments
  • 32 respects

Components and supplies

Apps and online services

About this project

Introduction

This project is about a Digital and Binary Clock using Arduino and two LED matrix with MAX72XX and RTC (Real Time Clock) including several features.

Features:

  • Digital Clock
  • Binary Clock
  • Mode AM/PM
  • Mode 24 hours (international mode)
  • Time & Date (Day, Month & Weekday)
  • Temperature feature (only with RTC DS3231)
  • 02 different types of fonts (conventional & stylish)
  • RTC keeps the time and date when the clock is off
  • The internal memory of RTC can record the operational modes
  • Two digits sharing same LED display

The operation is very simple using the Arduino's restart button.

Every time you turn on or restart the Arduino, a new clock mode is set automatically.

Note: The aditional feature of temperature (ºC) was introduced to the version using RTC DS3231.

I hope you enjoy it!

Material List

  • Arduino UNO R3
  • LED Matrix Module with MAX7219
  • DS1307 or DS3231 module - RTC (Real Time Clock)
  • Middle Size Breadboard
  • Jumpers

Custom parts and enclosures

Templates for LED Matrix
Templates for LED Matrix

Schematics

Sketch - Digital-Binary Clock
Breadboard sketch

Comments

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