Machine chine vision is a field of electrical engineering that's changing how we interact with our environment, as well as the ways by which machines communicate with each other. Circuit Cellar has been publishing articles on the subject since the mid-1990s. The technology has come a long way since then. But it's important (and exciting) to regularly review past projects to learn from the engineers who paved the way for today's ground-breaking innovations.

In M1's IR sensor array, each LED is fired in turn and detected reflections are latched by the 74HC259 into an eight-bit byte. Click to read the entire article and study the schematic.