# knx — RSS Amplifier Recent posts from the 3 feeds in the RSS Amplifier directory that cover knx. Page: Feed: --- ## [For no apparent reason Oral-B removed flossing from their app](http://blog.jgc.org/2026/08/for-no-apparent-reason-oral-b-removed.html) _2026-08-19 · noreply@blogger.com (Unknown) · John Graham-Cumming's blog_ Look I hate blog posts bitching about software but having tried to contact P&G to no avail here I am. I have used an Oral-B IO toothbrush with the Oral-B app for years and somehow they decided to update the app and remove flossing. Why would you remove flossing? What's happened is an app redesign where a very simple and clear interface has turned into something. I can only assume a designer got to… ## [The eerie interface of man and machine (Life Magazine, October 1967)](https://blog.jgc.org/2026/06/the-eerie-interface-of-man-and-machine.html) _2026-06-23 · Unknown · John Graham-Cumming's blog_ The October 1967 edition of Life Magazine covered the ongoing Vietnam War but also contained a long article helping readers understand how "man's most complex machine" (the computer) worked. There's a scan available on Google Life archive here , but I've rescanned it to keep the full two and three page spreads intact. The final part of the special is entitled The eerie interface of man and machine… ## [The aperiodic table](https://blog.jgc.org/2026/05/the-aperiodic-table.html) _2026-05-12 · Unknown · John Graham-Cumming's blog_ XKCD 3242 is titled "The aperiodic table" and looks like this: Which is cool, but it's not aperiodic like a Penrose tiling . So, with a little (a lot) of help from Claude I created aperiodictable.com : your one true resource for the periodic table on a Penrose P3 tiling. Click and drag the canvas to place the periodic table wherever you fancy. Hit Print to print your own Aperiodic Table. It's a… ## [The aperiodic table](http://blog.jgc.org/2026/05/the-aperiodic-table.html) _2026-05-12 · noreply@blogger.com (Unknown) · John Graham-Cumming's blog_ XKCD 3242 is titled "The aperiodic table" and looks like this: Which is cool, but it's not aperiodic like a Penrose tiling . So, with a little (a lot) of help from Claude I created aperiodictable.com : your one true resource for the periodic table on a Penrose P3 tiling. Click and drag the canvas to place the periodic table wherever you fancy. Hit Print to print your own Aperiodic Table. It's a… ## [Raspberry Pi as an isolated AI coding server](https://blog.jgc.org/2026/04/raspberry-pi-as-isolated-ai-coding.html) _2026-04-14 · Unknown · John Graham-Cumming's blog_ I've been working quite a bit with Claude Code and OpenCode on a project and really wanted a way to run both without having to constantly approve use of tools. That's quite possible with Claude's claude --permission-mode bypassPermissions \[1\] (I'd like to use claude --enable-auto-mode but it's not available on my plan level (Max) \[2\]). But, either way, I don't want Claude or OpenCode doing… ## [Maistro](https://blog.jgc.org/2026/04/maistro.html) _2026-04-03 · Unknown · John Graham-Cumming's blog_ Back in 2012 I wrote a blog post titled just Programmer about both my job title and a company I'd just joined as a Programmer. I was very happy to be called a Programmer until quite recently. In the last few months, with the assistance of AIs like Kimi 2.5 and Claude, I've become something else. Something that uses my experience as a programmer by amplifies it massively. And, at the same time,… ## [Maistro](http://blog.jgc.org/2026/04/maistro.html) _2026-04-03 · noreply@blogger.com (Unknown) · John Graham-Cumming's blog_ Back in 2012 I wrote a blog post titled just Programmer about both my job title and a company I'd just joined as a Programmer. I was very happy to be called a Programmer until quite recently. In the last few months, with the assistance of AIs like Kimi 2.5 and Claude, I've become something else. Something that uses my experience as a programmer by amplifies it massively. And, at the same time,… ## [The European Schuko socket bothers me](https://blog.jgc.org/2026/01/the-european-schuko-socket-bothers-me.html) _2026-01-28 · Unknown · John Graham-Cumming's blog_ Because it isn't polarized, and that can lead to a situation where something is switched "off" but there's 230V of electricity still present. Take a look at this thing: At the bottom you have a standard European Schuko socket and Plugged into the socket is the power strip on the right. Plugged into the power strip is the lightbulb on the left that I've mounted and wired so I can measure the… ## [Episode 6 - Rising from the Ashes](https://player.amperwavepodcasting.com?feed-link=https%3A%2F%2Frss.amperwave.net%2Fv2%2Fepisode%2F7929694_2026-01-22-190734) _2026-01-22 · Rising from the Ashes_ The series closes with the voice of Nataly’s late father, Carlo, whose love, artistry, and spirit still echoed through the home he built. As the family returns to the ashes, small survivors, a palm tree, a ring, become symbols of enduring love and legacy. Through memories, laughter, grief, and resolve, this episode explores what it means to rebuild not just a house, but a sense of home, honoring a… [Listen](https://serve.castfire.com/audio/7929694/7929694_2026-01-22-190734.128.mp3?rssID=3941) ## [Episode 5: The Unseen Disasters](https://player.amperwavepodcasting.com?feed-link=https%3A%2F%2Frss.amperwave.net%2Fv2%2Fepisode%2F7916181_2026-01-14-180721) _2026-01-14 · Rising from the Ashes_ After the flames are gone, a new crisis begins. This episode pulls back the curtain on the invisible aftermath of disaster; the paperwork, permits, insurance battles, and endless waiting that stall recovery. Through conversations with her brother, Nataly explores why rebuilding takes so long and how resilience is tested long after the headlines fade. [Listen](https://serve.castfire.com/audio/7916181/7916181_2026-01-14-180721.128.mp3?rssID=3941) ## [Find it on Amazon (Sponsored)](https://crawlproof.com/a/LBhPBTwwkLOJ) _2026-01-14 · **Sponsored**_ Open the Amazon product listing to see details and availability ## [Episode 4: The Reporter Becomes the Story](https://player.amperwavepodcasting.com?feed-link=https%3A%2F%2Frss.amperwave.net%2Fv2%2Fepisode%2F7916140_2026-01-14-171340) _2026-01-14 · Rising from the Ashes_ In this episode, Nataly confronts what happens when professional distance disappears and grief becomes public. As media attention intensifies, she reflects on the emotional toll of telling her story again and again, and how reporting became both a survival mechanism and a container for pain she didn’t yet know how to carry. [Listen](https://serve.castfire.com/audio/7916140/7916140_2026-01-14-171340.128.mp3?rssID=3941) ## [There's a ridiculous amount of tech in a disposable vape](https://blog.jgc.org/2026/01/theres-ridiculous-amount-of-tech-in.html) _2026-01-08 · Unknown · John Graham-Cumming's blog_ So, I'm walking through a park when I see this thing lying on the ground: It's a disposable vape that someone has discarded because it's empty. Specifically, it's a "Fizzy Max III 60K Rechargeable Disposable Vape" and I was about to take it to a bin to throw away when I noticed it had USB-C. I know nothing about vapes so that was a total WTF moment. Naturally, I took it home, sanitized it, and… ## [Episode 1: The Day the Fire Found Me](https://player.amperwavepodcasting.com?feed-link=https%3A%2F%2Frss.amperwave.net%2Fv2%2Fepisode%2F7900872_2026-01-07-000012) _2026-01-07 · Rising from the Ashes_ In the first episode of Rising from the Ashes, KNX News reporter Nataly Tavidian recounts the day Southern California’s wildfires stopped being a story she was covering - and became the one she was living. While reporting on the Palisades Fire, Nataly was sent to cover a new blaze threatening Pasadena and Altadena: the neighborhood where she grew up and the home her parents built after immigrating… [Listen](https://serve.castfire.com/audio/7900872/7900872_2026-01-07-000012.128.mp3?rssID=3941) ## [Episode 2: The Morning After](https://player.amperwavepodcasting.com?feed-link=https%3A%2F%2Frss.amperwave.net%2Fv2%2Fepisode%2F7900891_2026-01-07-010131) _2026-01-07 · Rising from the Ashes_ Episode two picks up in the quiet aftermath of the fire, when the adrenaline fades and reality sets in. Nataly Tavidian reflects on the moment she learned her family home was gone—a phone call from a close colleague/TV reporter who was reporting live from the property. The episode centers on the shock of seeing what remains for the first time and the emotional weight of hearing devastating news… [Listen](https://serve.castfire.com/audio/7900891/7900891_2026-01-07-010131.128.mp3?rssID=3941) ## [Episode 3: Family in the Aftermath](https://player.amperwavepodcasting.com?feed-link=https%3A%2F%2Frss.amperwave.net%2Fv2%2Fepisode%2F7900914_2026-01-07-011614) _2026-01-07 · Rising from the Ashes_ Episode three turns inward, focusing on family, memory, and the long road toward rebuilding. Through conversations with her mother at the property site, Nataly captures the emotional complexity of losing not just a house, but a home built over decades - and the life that existed inside it. The episode highlights the generational impact of loss, the challenge of accepting a “new beginning,” and the… [Listen](https://serve.castfire.com/audio/7900914/7900914_2026-01-07-011614.128.mp3?rssID=3941) ## [If you care about security you might want to move the iPhone Camera app](https://blog.jgc.org/2025/12/if-you-care-about-security-you-might.html) _2025-12-28 · Unknown · John Graham-Cumming's blog_ There's a quirk in the iPhone Camera app that can drive a security conscious iPhone owner crazy: if you touch your finger on the Camera app icon without actually opening the app, the camera starts operating. That causes the little green dot indicator on the iPhone to turn on and then after a few seconds disappear. This can easily make a security-conscious iPhone user worry that some app is… ## [A couple of handy KNX gadgets](https://blog.jgc.org/2025/10/a-couple-of-handy-knx-gadgets.html) _2025-10-20 · Unknown · John Graham-Cumming's blog_ KNX is a European standard used in home automation. It's primarily based around a twisted pair bus transporting DC power (30V) and data at 9600 bits/second. Devices attached to this KNX bus draw power for their operation and receive and send messages called telegrams. The devices are typically things like switches, relays, dimmers, HVAC interfaces, small displays, and blind/shutter controllers. If… ## [Protecting your (my) passport from liquid damage](https://blog.jgc.org/2025/10/protecting-your-my-passport-from-liquid.html) _2025-10-01 · Unknown · John Graham-Cumming's blog_ After an unfortunate incident involving my passport and some alcohol-based hand gel in my bag, I decided I needed some sort of waterproof passport protection. But searching around for "passport wallets" mostly doesn't result in anything waterproof and all the wallets are large, bulky or ugly. But there is a really simple solution. A 4 mil ziploc bag of the appropriate size. What's the appropriate… ## [Is a movie prop the ultimate laptop bag?](https://blog.jgc.org/2025/09/is-movie-prop-ultimate-laptop-bag.html) _2025-09-22 · Unknown · John Graham-Cumming's blog_ A while back I attended a Cloudflare board meeting and carried my laptop in a brown paper bag from a grocery store. This elicited a few comments about needing a real bag. But I've often carried my laptop in inconspicuous bags. For me, the ultimate laptop bag is one that looks nothing like a laptop bag; it should look like nothing special at all. Unhappily, grocery bags are not very strong, but… ## [Ex-X](https://blog.jgc.org/2025/09/ex-x.html) _2025-09-07 · Unknown · John Graham-Cumming's blog_ I did have an X.com (username: 6a6763) account and I got bored of it so I deactivated it today. ## [Point a Domain, Start a Pit (Sponsored)](https://crawlproof.com/a/7uyiR90ZyhQL) _2025-09-07 · **Sponsored**_ Point any domain to a blacked-out, poison-green coming-soon page with an email waitlist. ## [Ex-X](http://blog.jgc.org/2025/09/ex-x.html) _2025-09-07 · noreply@blogger.com (Unknown) · John Graham-Cumming's blog_ I did have an X.com (username: 6a6763) account and I got bored of it so I deactivated it today. ## [Ode to the anti-Mac: Panasonic Toughbook FZ-40](https://blog.jgc.org/2025/07/ode-to-anti-mac-panasonic-toughbook-fz.html) _2025-07-21 · Unknown · John Graham-Cumming's blog_ I own two computers that I use regularly. The first is my main machine, a rather old Apple MacBook Pro , the other is a Panasonic Toughbook FZ-40. They are polar opposites. Where the Mac is designed with tightly coupled software and hardware and is all smooth curves and delicate design, the Toughbook is designed to be used wearing gloves, outside and in rough situations that would damage the Mac.… ## [Pimping my Casio: Part Deux](https://blog.jgc.org/2025/07/pimping-my-casio-part-deux.html) _2025-07-18 · Unknown · John Graham-Cumming's blog_ Close to three years ago I wrote about using Oddly Specific Objects' alternate "motherboard" to modify a classic Casio F-91W watch: Pimping my Casio with Oddly Specific Objects' alternate motherboard and firmware. That blog post goes into the detail of swapping out the guts of the Casio and building and uploading the firmware. Happily, Oddly Specific Objects is back with a "Pro" version of their… ## [The discreet charm of the infrastructureless](https://blog.jgc.org/2025/06/the-discreet-charm-of-infrastructureless.html) _2025-06-25 · Unknown · John Graham-Cumming's blog_ Early in the morning in a European city, I awoke and wondered for a moment where I was. The room was totally black apart from a small glow from the face of my Casio Lineage watch lying on the bedside table. The luminous dial had absorbed sunlight during the day and was now giving off gentle light in the night; enough brightness to read the time. Infrastructureless #1: sunlight + chemistry = glow… ## [The discreet charm of the infrastructureless](http://blog.jgc.org/2025/06/the-discreet-charm-of-infrastructureless.html) _2025-06-25 · noreply@blogger.com (Unknown) · John Graham-Cumming's blog_ Early in the morning in a European city, I awoke and wondered for a moment where I was. The room was totally black apart from a small glow from the face of my Casio Lineage watch lying on the bedside table. The luminous dial had absorbed sunlight during the day and was now giving off gentle light in the night; enough brightness to read the time. Infrastructureless #1: sunlight + chemistry = glow… ## [Low-background Steel: content without AI contamination](https://blog.jgc.org/2025/06/low-background-steel-content-without-ai.html) _2025-06-10 · Unknown · John Graham-Cumming's blog_ Somehow I forgot to blog my site: https://lowbackgroundsteel.ai/ . I created it back in March 2023 as a clearinghouse for online resources that hadn't been contaminated with AI-generated content. Low-background Steel (and lead) is a type of metal uncontaminated by radioactive isotopes from nuclear testing. That steel and lead is usually recovered from ships that sunk before the Trinity Test in… ## [It was time for a dim bulb current limiter](https://blog.jgc.org/2025/06/it-was-time-for-dim-bulb-current-limiter.html) _2025-06-01 · Unknown · John Graham-Cumming's blog_ One of my Minitels (the one that I modified a few years ago to run new firmware ) started having power supply problems: the LED was on but nothing else was working. I suspected that the main power/CRT board needed new capacitors and so I recapped it: Alas, despite some of the older capacitors measuring poorly compared to their specs, that wasn't the problem and so I need to go deeper. The only… ## [Just one more calculator, bro, just one more, I swear it's the last one](https://blog.jgc.org/2025/04/just-one-more-calculator-bro-just-one.html) _2025-04-21 · Unknown · John Graham-Cumming's blog_ I'm not much of a collector of things. Long ago I decided that on the retro-computing front I would not collect any machines that weren't very significant to me. So, my "collection" consists of a KIM-1 , Sharp MZ-80K , Research Machines 380Z and 480Z, BBC Micro Model B , an IBM ThinkPad 701C , and a Minitel (well, two ). But calculators are where I come closest to not being able to resist.… ## [The Via Verde Stick](https://blog.jgc.org/2025/04/the-via-verde-stick.html) _2025-04-10 · Unknown · John Graham-Cumming's blog_ Portugal has an incredibly well executed and efficient system for collecting road tolls called Via Verde . A small transponder in the car either collects a toll at an automated toll booth or, on some motorways, every few kilometres without slowing down at all. Via Verde can also be used to pay for parking in many locations. When entering a car park where Via Verde is an option there are two ways… ## [The Via Verde Stick](http://blog.jgc.org/2025/04/the-via-verde-stick.html) _2025-04-10 · noreply@blogger.com (Unknown) · John Graham-Cumming's blog_ Portugal has an incredibly well executed and efficient system for collecting road tolls called Via Verde . A small transponder in the car either collects a toll at an automated toll booth or, on some motorways, every few kilometres without slowing down at all. Via Verde can also be used to pay for parking in many locations. When entering a car park where Via Verde is an option there are two ways… ## [Refer a Friend, Earn Rewards (Sponsored)](https://crawlproof.com/a/N1jXg8p7QkOz) _2025-04-10 · **Sponsored**_ Earn rewards when friends get the Graphite Business Card through your referral. ## [Debugging Lotus 1-2-3 by fax](https://blog.jgc.org/2025/03/debugging-lotus-1-2-3-by-fax.html) _2025-03-31 · Unknown · John Graham-Cumming's blog_ There isn't a lot to this story beyond the fact that in around 1990 I helped debug someone's Lotus 1-2-3 set up via fax. But it's a good reminder of how important the Zeroth Law of Debugging is (see below). Without some sort of online connection with these folks, and with transatlantic phone calls being very, very expensive (I was in the UK, they were in the US) fax was the obvious answer. I was… ## [I have come to loathe acronyms](https://blog.jgc.org/2025/02/i-have-come-to-loath-acronyms.html) _2025-02-13 · Unknown · John Graham-Cumming's blog_ Unless they are widely, widely known they make communication worse. And they have a tendency to make the writer seem pompous, or a member of some special clique, while making a reader who doesn't know the acronym feel foolish. They are the opposite of clear communication, and are often accompanied by unclear, complex language. The writer's goal (whether of a book, an email, or whatever the hell we… ## [Archiving hardware projects](https://blog.jgc.org/2025/02/archiving-hardware-projects.html) _2025-02-10 · Unknown · John Graham-Cumming's blog_ From time to time I do some project involving old hardware that requires connecting it to a modern computer. For example, Getting the KIM-1 to talk to my Mac Resurrecting a Dataman S4 PROM programmer Ripping old mini DV video tapes on a Mac And I've come to the conclusion that archiving the related hardware is important. For example, I got this Dataman S4 talking to my Mac using a few different… ## [Archiving hardware projects](http://blog.jgc.org/2025/02/archiving-hardware-projects.html) _2025-02-10 · noreply@blogger.com (Unknown) · John Graham-Cumming's blog_ From time to time I do some project involving old hardware that requires connecting it to a modern computer. For example, Getting the KIM-1 to talk to my Mac Resurrecting a Dataman S4 PROM programmer Ripping old mini DV video tapes on a Mac And I've come to the conclusion that archiving the related hardware is important. For example, I got this Dataman S4 talking to my Mac using a few different… ## [Getting the KIM-1 to talk to my Mac](https://blog.jgc.org/2025/02/getting-kim-1-to-talk-to-my-mac.html) _2025-02-09 · Unknown · John Graham-Cumming's blog_ I've written before about my 1976 KIM-1 and code I wrote for a similar one long ago. But I hadn't done much with the KIM-1 and strongly believe that old hardware need to be living machines not still lives. But using the KIM-1 directly (via its keypad and little hexadecimal display) is painful. I wanted to be able to use it with a terminal. Luckily, the KIM-1 was designed to interface to a… ## [The Southern California Fire Disaster: One Month Later](https://player.amperwavepodcasting.com?feed-link=https%3A%2F%2Frss.amperwave.net%2Fv2%2Fepisode%2F7268663_2025-02-08-031603) _2025-02-08 · Rising from the Ashes_ Exactly one month ago, the worlds of several thousand LA County residents were turned upside down ... when violent winds stoked massive fires that left a trail of unprecedented destruction. Tonight we will bring you the survival stories of six people who lost everything during the January 7th fires ... three residents of the Pacific Palisades, and three residents of Altadena. We'll ask about… [Listen](https://serve.castfire.com/audio/7268663/7268663_2025-02-08-031603.128.mp3?rssID=3941) ## [Twenty years of the "GNU Make Standard Library"](https://blog.jgc.org/2025/02/twenty-years-of-gnu-make-standard.html) _2025-02-03 · Unknown · John Graham-Cumming's blog_ Twenty years ago, on February 3, 2005, I released v1.0.0 of a project I called "GNU Make Standard Library" (GMSL). That first release can still be found in its original location on SourceForge. I moved the project from SourceForge to GitHub and newer releases are there. The latest release is v1.2.2 on March 30, 2024. The project has its own homepage at https://gmsl.jgc.org/ . The page describes… ## [The Southern California Fire Disaster: What Now?](https://player.amperwavepodcasting.com?feed-link=https%3A%2F%2Frss.amperwave.net%2Fv2%2Fepisode%2F7168871_2025-01-25-014711) _2025-01-25 · Rising from the Ashes_ This is a story about historic fires, survival, and what promises to be monumental efforts to rebuild and flourish in an often hostile environment where danger lurks with every gust of wind. In short, it is a story about ourselves. As tens of thousands of L.A. County residents spent the last two weeks trying to stay alive and keep their homes from burning to the ground, there was little time to… [Listen](https://serve.castfire.com/audio/7168871/7168871_2025-01-25-014711.128.mp3?rssID=3941) ## [Was January 6th a victory for Trump and MAGA after all?](https://player.amperwavepodcasting.com?feed-link=https%3A%2F%2Frss.amperwave.net%2Fv2%2Fepisode%2F7137499_2025-01-06-232739) _2025-01-06 · Rising from the Ashes_ We dive into the brewing Republican civil war over whether businesses should be hiring foreign workers over American workers. Then we look back at four years ago today--January 6th, 2021--and whether President-elect Trump and the MAGA movement actually won that day. [Listen](https://serve.castfire.com/audio/7137499/7137499_2025-01-06-232739.128.mp3?rssID=3941) ## [The complete text of "All Watched Over by Machines of Loving Grace"](https://blog.jgc.org/2024/12/the-complete-text-of-all-watched-over.html) _2024-12-26 · Unknown · John Graham-Cumming's blog_ Richard Brautigan's poem " All Watched Over by Machines of Loving Grace " is somewhat well known in tech. circles but I couldn't find a complete PDF of the original 1967 publication of it (and other poems) online. The copyright notice in Brautigan's collection reads: © Copyright 1967 by Richard Brautigan Permission is granted to reprint any of these poems in magazines, books and newspapers if they… ## [Does the Constitution need a re-write?](https://player.amperwavepodcasting.com?feed-link=https%3A%2F%2Frss.amperwave.net%2Fv2%2Fepisode%2F7123638_2024-12-20-231238) _2024-12-20 · Rising from the Ashes_ We talk with two top constitutional experts about concern from some Democrats that Republicans could force a Constitutional Convention [Listen](https://serve.castfire.com/audio/7123638/7123638_2024-12-20-231238.128.mp3?rssID=3941) ## [badkeming: a site for kerning so bad it's keming](https://blog.jgc.org/2024/12/badkeming-site-for-kerning-so-bad-its.html) _2024-12-15 · Unknown · John Graham-Cumming's blog_ I made another silly Tumblr (to go along with Movie Code and Low Background Steel ). This times it's a Tumblr for all those font disasters and other typographical amusements. Welcome to the wonderful world of badkeming.com : Submissions gladly accepted.