Conway's Game of Life, in real life
lcamtuf.substack.com
March 19, 2026
4 min read
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63/100
Summary
Conway's Game of Life operates on a two-dimensional grid of square cells, where each cell can be either alive (1) or dead (0). In each iteration, live cells die from starvation if they have fewer than two neighbors or from overpopulation if they have four or more neighbors, while dead cells become alive if they have exactly three neighbors.
Key Takeaways
- Conway's Game of Life operates on a two-dimensional grid where cells can be alive (1) or dead (0), with specific rules governing their survival and reproduction based on neighboring cells.
- An interactive display of Conway's Game of Life was created using a 17×17 matrix of switches and LEDs, controlled by a Microchip AVR128DA64 microcontroller.
- The display's brightness is managed by supplying higher LED currents, with a maximum current consumption of 2.5 A when an entire row is illuminated.
- User input is detected through a system that pulls switch banks to ground, allowing for cell toggling and game state manipulation while ensuring safe operation with a watchdog timer.
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Positives
- The article's engaging writing style captivates readers, highlighting the importance of quality content in an era dominated by LLM-generated text.
- The concept of a flat tabletop screen with magnetically-controlled pixels opens exciting possibilities for interactive gaming experiences, merging physical and digital play.
