Ethernet is a ubiquitous and simple technology that offers fast connectivity using just four wires. It’s widely supported in microcontrollers and SoCs, making it a valuable tool for high-bandwidth connections between devices. There are different versions of Ethernet ranging from 100 Mbps to 10 Gbps, each with its own set of cables and connectors. Understanding the basics of Ethernet, such as cabling, connectors, and pin mappings, is crucial for working with the technology. Crossover cables, Auto-MDI-X, and other Ethernet features are discussed, offering a comprehensive overview of this essential networking technology. Excitingly, there’s a vast world beyond traditional Ethernet standards with industrial and automotive applications worth exploring.
https://hackaday.com/2024/02/12/ethernet-for-hackers-the-very-basics/