31 Dec '16, 9am

Tiny Game of Simon on an ATtiny13

Tiny Game of Simon on an ATtiny13

How much game can you get out of a chip with only 1 kB of flash memory and (five or) six free GPIOs? Well, you can get it to play the classic memory game, Simon . [Vojtak] is submitting this project for the 1 kB Challenge , but it looks like it’s already been used to teach simple microcontrollering to teenagers as well, so the code is actually straightforward to read, but full of nice features. Neat tricks include sharing button-press sensing and LED driving on the same pin, which was necessary to make everything work on such a small chip. A simple linear-congruential pseudorandom sequence provides the variation, and it’s seeded by slow-clock/fast-clock timing jitter, so you’re probably not going to see the same sequence twice. (It’s not the best random number generator ever , but it’ll do.) If that weren’t enough, high scores (and the random seed for the game) are saved t...

Full article: http://hackaday.com/2016/12/31/tiny-game-of-simon-on-an-a...

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