A shift register is all you need to build a retro computer based on Arduino Nano

A change register East all You need has build A Arduino Nano-based retro computer

Arduino Team — April 5th, 2024

If you have Never try has produce A analog video signal with A Arduino, SO You know that he is not it easy. It is A little counter intuitive if You think of analog video as "old" And assume that generator A analog video signal would be be banal with OUR powerful modern material. But there are a lot manners In which analog signals are difficult And It is especially TRUE if You to want something as VGA to go out, which requires very accurate Hourly. It is Why he East SO impressive that Sl4 was able has build This retro computer with just A Arduino Nano And A change register.

This was No simple feat And he Really showcases Slu4 programming prowess. Her creation can to go out 320×200 resolution VGA video while while reading PS/2 keyboard contributions, with enough treatment power left over has handle basic video game logic And chart. He demonstrates that with a Tetris style Games that short very gently. And Sl4 said that he East even possible has add 16 colors by row, However he doesn't to show that In action.

Sl4 First of all reached A similar result A little years There is, but that required several THIS (Integrated Circuit) fleas. This version only needs A: A standard 74HC166 change register. That help him overcome a few of THE challenges related has VGA Hourly, which THE The Nano ATmega328 microcontroller can wejust barelykeep up with. This did require a few low level programming has maximize efficiency, but Sl4 was able has to pull he disabled. Even more impressive, he was able has read PS/2 keyboard to input has THE even time SO THE player can control THE Thu.