M5Stack NTP Clock

A minimalist digital clock for M5Stack Core2 featuring NTP synchronization and a clean, elegant display. Shows time, date, and day of week with precision and style.

Key Features

• Minimalist UI with 12-hour time format and seconds display
• One-touch time synchronization via WiFi (hold center button for 5s)
• Battery-efficient design (WiFi only active during sync)
• RTC-backed timekeeping for accuracy when offline

Hardware

• M5Stack Core2

Quick Setup

1. Clone & Configure:

   git clone https://github.com/yourusername/M5stack_Clock.git
   cp src/secrets.h.template src/secrets.h
   

2. Edit WiFi credentials in src/secrets.h

3. Build & Upload using PlatformIO

Usage

• View time: The clock displays automatically on power-up
• Sync time: Hold middle button (B) for 5 seconds
• Time zone: Currently set to GMT+7 (Bangkok)
  • To change: Modify gmtOffset_sec in main.cpp

Fonts Used

• BlackHanSans-Regular

Tech Stack

Built with M5Core2 library, LVGL 8.3.6, and ESP32 Arduino framework.

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