Venerable Ethernet provides the backbone of the internet. Ethernet has risen to complete dominance for local area networks over its forty years of existence. The first Ethernet experimentals versions started in 1972 (patented 1978). The commercialization of Ethernet started in 1980′s. At first Ethernet technology remained primarily focused on connecting up systems within a single →
I got an old HP mixed signal oscilloscope HP54645D. This is over 20 years old test instrument with CRT display. The 54645D is a 100 MHz, 2+16 channel Mixed Signal Oscilloscope from Agilent. Measure voltage or current signals over time in an electronic circuit or component to display amplitude, frequency, rise time, etc. Applications include →
Nowadays it is possible to buy passive and active device to run Ethernet over Coax – some products support data transfer over larger distances then you can get on regular Cat5. The passive converters are typically limited to 100 Mbps maximum speeds up to 100-200 meters distance maximum. If you need faster speed or longer →
Don’t do this! (There’s a much safer way) https://www.youtube.com/watch?v=M88e1r8nvYk Big Clive discovered there’s a “thing” going around where people are charging lithium cells by attaching a stripped USB lead directly to them. Normally lithium cells are very safe if undamaged and correct charging procedures are used. But overcharging them like this can result in cell →
This posting is here to collect cyber security news in July 2022. I post links to security vulnerability news to comments of this article. You are also free to post related links to comments. →
In this post I am talking about adapting 10 and 100 megabit twisted pair Ethernet to use coaxial cable instead of twisted pair wiring. Those 10BASE-T and 100BASE-TX Ethernet st standards use two wire pairs for communications (one for TX and other for RX). In this article I am describing how to adapt them to →
Atari At 50: The Story Of Our Lives https://hackaday.com/2022/06/27/atari-at-50-the-story-of-our-lives/ It’s been a year of anniversaries, what with the 40th birthday of both the Commodore 64 and the Sinclair ZX Spectrum. There has been 50 years since Nolan Bushnell and Ted Dabney incorporated Atari Inc, a name that will forever be synonymous with the development of →
Ethernet started as a network that runs over coaxial cable. Over years the Ethernet has started to use mainly twisted pair wiring and fiber optics for communications. There seems to be every now and then still questions related to running Ethernet over coaxial cabling. This is the first part of multi-part post on running Ethernet →
Any device sporting a chip and some form of communications protocol can be hacked – that’s almost as strong a law as those governing gravity. Besides audio and video data, there are a number of parallel protocols in HDMI that transmit more information than we’d expect. There is I2C configuration data, HDCP (High-bandwidth Digital Content →
Kantega | The Mysterious Life of Developers https://www.youtube.com/watch?v=ocwnns57cYQ Comments: Notice that none have created any documentation. Yep, this is accurate! This is fake I don’t see a guy browsing stack overflow and beating his head with a keyboard and regretting his life decisions. Next video should contain softwares testers as predators… lurking behind the curtain →