Spanish word clock with Arduino

Spanish word clock with Arduino

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This is my Word clock in Spanish using an Arduino in a 10x10 matrix, I did it some years ago, and was hanging powered off on a wall of my kitchen for the same time due to some Arduino problems. I used an original Arduino (first model), and those had a small problem when they are powered by an external battery, making it implossible to boot propertly. Recently I decided to ditch out the old Arduino and replace it with a new nano model and power the whole thing with a USB wall adapter.

I tried to recover all the information I wrote done when I first build this, I got most important information but some details and pictures are missing.
  • 1 × Arduino nano
  • 1 × Macetech ChronoDot
  • 1 × MAX7219 Interface and IO ICs / Display Interface
  • 104 × LEDs + resistors (5mm 26000mcd)
  • 2 × Push buttons

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