A simple LED dot matrix clock project based on Arduino Nano (ATmega328 chip).

• Arduino Nano 3.0 (ATmega328).
• Real Time Clock DS3231RTC.
• 32x8 LED Dot Matrix Display Module (with MAX7219 chip).
• LDR sensor.

To set the clock, use the Arduino IDE Serial Monitor and follow on screen instructions.

>> Arduino 32x8 LED Dot Matrix Clock!
>> Use <dd/mm/yyyy hh:mm:ss> format to set clock's date and hour!