⏰ Multi-Zone Matrix Clock

ESP8266 Arduino

A WiFi-enabled LED matrix clock for ESP8266 that displays time from multiple timezones. Features automatic NTP synchronization, DST handling, and a web-based configuration interface.

Multi-Zone Matrix Clock Showcase
Web Configuration Interface
🌍

Multiple Timezone Support

Display time from up to 6 different timezones (UTC, CST, EST, PST, IRST, and more)

⏰

Automatic Time Sync

NTP synchronization ensures accurate time without manual adjustment

🌅

DST Handling

Automatic Daylight Saving Time adjustments for US timezones

📱

Web Configuration

Easy-to-use web interface for settings and WiFi configuration

🔌

WiFi Manager

Automatic WiFi configuration portal on first boot

🎨

Customizable Display

Adjustable brightness and 12/24-hour format options

Hardware Requirements

  • ESP8266 (NodeMCU, Wemos D1 Mini, or similar)
  • MAX7219 LED Matrix Display (4 modules, FC16 hardware type)
  • Jumper wires for connections
  • 5V power supply (USB or external adapter)

Pin Connections

ESP8266 Pin MAX7219 Pin Description
D5 CLK Clock
D7 DIN Data In
D8 CS Chip Select
5V VCC Power
GND GND Ground

Note: The pin definitions can be modified in config.h if needed.

3D Printing

This project includes 3MF files for 3D printing the enclosure and mounting components. All files are optimized for Bambu Lab A1 Mini and are located in the stl/ directory.

Available 3MF Files

  • FRONT.3mf - Front panel/enclosure
  • FRONT Wemos D1 Mini.3mf - Front panel with Wemos D1 Mini mounting
  • BACK.3mf - Back panel/enclosure
  • FRAME FRONT.3mf - Front frame component
  • FRAME BACK.3mf - Back frame component
  • 2 x MATRIX HOLDER.3mf - Matrix display holder (print 2x)

Quick Start

1. Install Libraries

Install the following libraries via Arduino IDE Library Manager:

  • ESP8266WiFi (included with ESP8266 board support)
  • WiFiManager by tzapu
  • MD_Parola by majicDesigns
  • MD_MAX72XX by majicDesigns
  • NTPClient by Fabrice Weinberg

2. Setup Arduino IDE

  • Add ESP8266 board support URL: http://arduino.esp8266.com/stable/package_esp8266com_index.json
  • Install ESP8266 board package from Boards Manager
  • Select your board: NodeMCU 1.0 (ESP-12E Module)
  • Set upload speed to 115200

3. Upload & Configure

  • Upload the sketch to your ESP8266
  • Connect to the MultiZoneClock WiFi network
  • Configure your WiFi credentials
  • Access the web interface at the device IP address
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