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Autopsy of a Freshly Cooked 10Gbit SFP+ Network Adapter
With the advent of affordable 2.5 Gbit, 5 Gbit, and 10 Gbit consumer networking gear, more and more people are taking advantage of these higher networking speeds, with [This Does Not Compute] having...
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Revisiting Making Your Own Internet Router in 2026
After my recent misadventures setting up an OpenWrt installation on a scruffy e-waste-level x86 PC, quite a few people chimed in with feedback, criticism and friendly hostility regarding things like a...
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Espressif’s New ESP32-S31: Dual-Core RISC-V with WiFi 6 and GBit Ethernet
In a move that’s no doubt going to upset and confuse many, Espressif has released its newest microcontroller — the ESP32-S31. The confusing part here is that the ESP32-S series was always the one based...
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Bit-banged 100 MBit/s Ethernet Transmission on Raspberry Pi Pico
The Raspberry Pi Pico is a very capable board, but it’s still a surprise to see bit-banged 100 MBit/s Fast Ethernet implemented on one. [Steve]’s Pico-100BASE-TX library allows an RP2040 (or RP2350)...
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Listening To Ethernet Via Eurorack
Ethernet is how we often network computers together, particularly when they’re too important to leave on a fussy WiFi connection. Have you ever thought about listening to Ethernet signals, though?...
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PoE-powered GPIB Adapter with Ethernet and USB-C Support
In the world of (expensive) lab test equipment the GPIB (general purpose interface bus) connection is hard to avoid if you want any kind of automation, but nobody likes wrangling with the bulky cables...
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The Twisted History of Ethernet on Twisted Pair Wiring
We all take Ethernet and its ubiquitous RJ-45 connector for granted these days. But Ethernet didn’t start with twisted pair cable. [Mark] and [Ben] at The Serial Port YouTube channel are taking a deep...
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DIY Pipe Inspector Goes Where No Bot Has Gone Before
If you think your job sucks, be grateful you’re not this homebrew sewer inspection robot. Before anyone gets upset, yes we know what [Stargate System] built here isn’t a robot at all; it’s more of a...
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Ethernet From First Principles
For someone programming in a high-level language like Python, or even for people who interact primarily with their operating system and the software running on it, it can seem like the computer...
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Ferrites Versus Ethernet in the Ham Shack
For as useful as computers are in the modern ham shack, they also tend to be a strong source of unwanted radio frequency interference. Common wisdom says applying a few ferrite beads to things like...
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DEC’s LAN Bridge 100: The Invention of the Network Bridge
DEC’s LAN Bridge 100 was a major milestone in the history of Ethernet which made it a viable option for the ever-growing LANs of yesteryear and today. Its history is also the topic of a recent video by...
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Ethernet History: Why Do We Have Different Frame Types?
Although Ethernet is generally considered to be a settled matter, its history was anything but peaceful, with its standardization process (under Project 802) leaving its traces to this very day. This...
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A Really Low Level Guide To Doing Ethernet on an FPGA
With so much of our day-to-day networking done wirelessly these days, it can be easy to forget about Ethernet. But it’s a useful standard and can be a great way to add a reliable high-throughput...
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Manta: An Open On-FPGA Debug Interface
We always can use more tools for FPGA debugging, and the Manta project by [Fischer Moseley] delivers without a shadow of a doubt. Manta lets you add a debug and data transfer channel between your...
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Homebrew Network Card with No CPU
A modern normal network card will have onboard an Ethernet controller which, of course, is a pre-programmed microcontroller. Not only does it do the things required to keep a computer on the network,...
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How DEC’s LANBridge 100 Gave Ethernet a Fighting Chance
Alan Kirby (left) and Mark Kempf with the LANBridge 100, serial number 0001. (Credit: Alan Kirby) When Ethernet was originally envisioned, it would use a common, shared medium (the ‘Ether’ part), with...
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Ethernet For Hackers: Transformers, MACs And PHYs
We’ve talked about Ethernet basics, and we’ve talked about equipment you will find with Ethernet. However, that’s obviously not all – you also need to know how to add Ethernet to your board and to your...
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Restoring Starlink’s Missing Ethernet Ports
Internet connectivity in remote areas can be a challenge, but recently SpaceX’s Starlink has emerged as a viable solution for many spots on the globe — including the Ukrainian frontlines....
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Ethernet For Hackers: Equipment Exploration
Last time, we talked about the surface-level details of Ethernet. They are fundamental to know for Ethernet hacking, but they’re also easy to pick up from bits and pieces online, or just from wiring up...
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Underwater Sensor Takes Single Pair Ethernet for a Dip
The 10BASE-T1 Ethernet standard is also known as ‘single pair Ethernet’ (SPE), as it’s most defining feature is the ability to work over a single pair of conductors. Being fairly new, it offers a lot...
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