Arduino Nano and 8x8 LED screen display text

Merry Christmas and a Happy New Year to all the Arduino Nano and 8x8 LED screen display text. The first part of the text is in English, the second part of the original Hungarian.
My hobbies mainly in the construction of robots makes it out, but I would make an exception if the topic does not belong here, but then everyone would like to say to this. The display is driven by two pieces 74HC595 shift register. The text you type will be entered into the Arduino serial monitor. The program is writing a course syllabus given help. Looking behind the Christmas tree has four LEDs line controlling ATTINY45 a microcontroller is done.

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8x8 LED matrix display with red LED 5mm diameter from.

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The transistor drive test panel.

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The Arduino Nano base panel.

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The display is positioned in front of the Christmas tree.

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The two together during operation, but let’s look at the videos it made.
Merry Christmas and a Happy New Year wishes to all!

https://www.youtube.com/watch?v=M1Nq9zta24c

lights

Thanks for posting. Could you elaborate on the relationship between the LED array and the tree lights. Are they both controlled by 1 8-pin ATTINY45???