The Options for Low Cost ROV Tethers
Wireless connections are cool and all, but sometimes you just need a bit of copper. This interesting article on SV Seeker discusses the various ways of making a tether for a remotely operated vehicle...
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New Part Day: An Open Source Ethernet Switch in the Palm of Your Hand
When you can get a WiFi-enabled microcontroller for $3, it’s little surprise that many of the projects we see these days have ditched Ethernet. But the days of wired networking are far from over, and...
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New Teensy 4.1 Arrives with 100 Mbps Ethernet, High-Speed USB, 8 MB Flash
It was only last August that PJRC released Teensy 4.0. At that time, the 4.0 became the fastest microcontroller development board on the planet, a title it still holds as of this writing — or, well,...
View ArticleReverse Engineering Teaches an Old Scope New Tricks
[PMercier] clearly loves his old Tektronix TDS3014 scope, which did however lack essentially modern connectivity such as an Ethernet port for control and a USB port for a convenient way to capture...
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Faster Desktop Ethernet With Server Network Adapters
As far as consumer network hardware goes, we’re all expected to be pretty happy with 802.11n WiFi and Gigabit Ethernet over Cat 6 cables. For most home users, that’s plenty of bandwidth for streaming...
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Ethernet At 40: From A Napkin Sketch To Multi-Gigabit Links
September 30th, 1980 is the day when Ethernet was first commercially introduced, making it exactly forty years ago this year. It was first defined in a patent filed by Xerox as a 10 Mb/s networking...
View ArticleTiny Ethernet Routers Now Available In Gigabit Speeds
If you need to move a lot of data, and fast, Gigabit Ethernet is a great way to do it. However, most network hardware outside of datacenters is fairly space inefficient, a headache if you’re building a...
View ArticleLeaking Data Slowly By Switching Ethernet Speeds
Airgapping refers to running a machine or machines without connections to external networks. Literally, a gap of air exists between the machine and the outside world. These measures present a challenge...
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Developing a Power Over Ethernet Stack Light
A common sight on factory floors, stack lights are used to indicate the status of machinery to anyone within visual range. But hackers have found out you can pick them up fairly cheap online, so we’ve...
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10 Gigabit Ethernet for the Pi
When people like Bell and Marconi invented telephones and radios, you have to wonder who they talked to for testing. After all, they had the first device. [Jeff] had a similar problem. He got a 10...
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Cable Modem Turned Spectrum Analyzer
Hopefully by now most of us know better than to rent a modem from an internet service provider. Buying your own and using it is almost always an easy way to save some money, but even then these pieces...
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Ethernet Cable Turned into Antenna to Exploit Air-Gapped Computers
Good news, everyone! Security researcher [Mordechai Guri] has given us yet another reason to look askance at our computers and wonder who might be sniffing in our private doings. This time, your...
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Hackaday Links: January 23, 2022
When Tonga’s Hunga-Tonga Hunga-Ha’apai volcano erupted on January 15, one hacker in the UK knew just what to do. Sandy Macdonald from York quickly cobbled together a Raspberry Pi and a...
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Tiny Ethernet Cable Arms Race Spawns From Reddit Discussion
If you’ve had any dealings with Cat 5 and Cat 6 cable, and let’s be honest, who hasn’t, you’ve probably wrestled with lengths anywhere from 1 meter to 25 meters if you’re hooking up a long haul....
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Ethernet Tester Needs No LEDs, Only Your Multimeter
Ethernet cable testers are dime a dozen, but none of them are as elegant and multimeter-friendly as this tester from our Hackaday.io regular, [Bharbour]. An Ethernet cable has 8 wires, and the 9 volts...
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Eight RS232 Ports, One Ethernet Port
When it comes to impromptu enclosures, [Paul Wallace] is a man after our own hearts, for his serial-to-Ethernet converters allowing him to control older test equipment were housed in takeaway curry...
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Bit-Banged Ethernet On The Raspberry Pi Pico
Whilst the Raspberry Pi RP2040 is quite a capable little chip, on the whole it’s nothing really special compared to the big brand offerings. But, the PIO peripheral is a bit special, and its inclusion...
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An Elegant Ethernet Library For Your Next RP2040 Project
A few days ago we covered a project that brought Ethernet connectivity to the Raspberry Pi Pico using little more than some twisted pair and a RJ-45 connector. It was a neat trick, but not exactly...
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Bit-Banging Bidirectional Ethernet on a Pi Pico
These days, even really cheap microcontroller boards have options that will give you Ethernet or WiFi access. But what if you have a Raspberry Pi Pico board and you really want to MacGyver yourself a...
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Power Over Ethernet, Explained
Most readers will be familiar with Ethernet networks in some form, in particular the Cat5 cables which may snake around the back of our benches. In a similar vein, we’ll have used power over Ethernet,...
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