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Yesterday, v0.12.3 of RGBMatrixEmulator released , featuring mainly non-functional changes around automated testing and a new CI pipeline that runs in GitHub Actions. For those not familiar with RGBME, here’s the full context . Long story short, it’s an emulator for Raspberry Pi HUB75 LED matrices. In the last few RBME releases I accidentally caused a a few bugs, so I set out to write some tests to help me avoid that in the future. It e....
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A comprehensive guide to understanding the Rails Asset Pipeline, its features, and its role in modern web development.
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Welcome back to another episode of our DnD campaign summaries. All events fictional. This blog post is unofficial Fan Content permitted under the Fan Content Policy. Not approved/endorsed by Wizards. Portions of the materials used are property of Wizards of the Coast. ©Wizards of the Coast LLC. The next morning, all of my headmates were merged into me, and Alice was in fox shape. After only a short breakfast, I had Ploop cast the Tongue....
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I recently gave (an unfortunately rushed) talk about arkaine - a maker-focused agentic AI framework I’ve been spending most of my time building. Slides for the talk are here
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I’m trying to reason about the behavior of this code, and I can’t decide if this is a stroke of genius or if I’m suffering from a stroke. Take a look at the code, and then I’ll discuss what I’m trying to do below: HANDLE hFile = CreateFileA ( "R:/original_file.bin" , GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL ) ; if ( hFile == INVALID_HANDLE_VALUE ) ....
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Comment on Raspberry Pi Pico 15.6 KHz analog RGB to VGA upscaler (part 1? POC? WIP?) by admin
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blog.qiqitori.com
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1 year ago
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eng
In reply to Jan de Lange. Yes, buying an ADC (shouldn't be expensive) would be the best option, especially if you have 16 shades of grey. (If you find that you actually only have (e.g.) three or four different levels, you could probably still implement it using discrete transistors without too much effort. This i..
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Can Rust replace C? This is a question that has been on my mind for many years, as I created and now am tech lead for upb , a C library for Protocol Buffers. There is an understandable push to bring memory safety to all parts of the software stack, and this would suggest a port of upb to Rust. While I love the premise of Rust, I have long been skeptical that a port of upb to Rust could preserve the performance and code size characteris....
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cPiArtFrame . DIY E-Ink clock update with more faces, github repo & full youtube tutorial . Show HN: E-Paper 7-color display showing the current weather | Hacker News .
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Reading crumbs structure: fermentation . Todays loaf and some advice after making 100+ loaves over 6 years .
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Learn how to automate Git commit messages using AI and Bash scripting. This tutorial shows you how to create meaningful, consistent commits with minimal effort.
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I already tried to write a blog post about AI. An article, discussing AI generated art, still festers in my drafts folder. As someone who enjoys 3D modelling, drawing, animating, someone who believes in art lifting our spirits, I find it pointless and distasteful. Not much to discuss. Here are some loose thoughts about AI, mostly from software development perspective, but not unique to it. I see coding as both a skill, which enables me ..
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More non photography things! This is extremely simple, and likely very well known to more experienced users of FreeBSD; however hopefully this will help someone searching for similiar info. The command is already built into FreeBSD: sesutil show This should result in output that looks something like this: ses0: <
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Comment on Raspberry Pi Pico 15.6 KHz analog RGB to VGA upscaler (part 1? POC? WIP?) by Jan de Lange
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blog.qiqitori.com
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1 year ago
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eng
Hi, these are all very valid points! 1) It is actually a 16 colors gray scale signal. So I am looking into a simple but fast ADC that can make it digital. 2) Level shifting and voltage change may indeed be required. I was told the output voltage ranges between -3 to +7V. But I'm not sure if this was measured with the monitor connected! So I may have to measure myself. 3) I found an IC that is designed for video level shifting. I posted it ..
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[i]Salutations, I hope all of you are having an excellent day.[/i] I was reading the MDN documentation regarding Canvas, and when I got to the animations section, I came across something I already knew but was terrified to accept: [b]It's all about Math
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lainchan.org
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1 year ago
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eng
Salutations, I hope all of you are having an excellent day. I was reading the MDN documentation regarding Canvas, and when I got to the animations section, I came across something I already knew but was terrified to accept: It's all about Math. It actually makes sense because, if you think about it, many successful computer scientists are or were mathematicians at heart (e.g. Mr. Guido van Rossum has a master's degree in Mathematic....
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Last night I was journaling, still processing some of the things that happened in the final year of my marriage – and in particular, some of the things I felt to be God speaking to me at the time, and how I had interpreted them. See at one point, right at the very beginning of […]
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AI-generated child sex abuse images targeted with new laws - BBC News
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lemmy.kikuri.moe
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1 year ago
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eng
submitted by Yuzuki to darknet 1 points | 0 comments https://www.bbcnewsd73hkzno2ini43t4gblxvycyac5aw4gnv7t2rccijh7745uqd.onion/news/articles/c8d90qe4nylo Four new laws will tackle the threat of child sexual abuse images generated by artificial intelligence (AI), the government has announced. The Home Office says that, to better protect children, the UK will be the first country in the world to make it illegal to possess, crea....
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In this post, I want to publicly list all my 2025 goals. This will help keep me accountable and more structured. Though I doubt I will be consulting it often.
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Comment on Raspberry Pi Pico 15.6 KHz analog RGB to VGA upscaler (part 1? POC? WIP?) by admin
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blog.qiqitori.com
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1 year ago
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eng
In reply to Jan de Lange. Hi, your input is analog, but you will find that there is no major difference between analog and digital when the signal is monochrome. The Pico of course expects a signal that is either 0V or 3.3V, and your display signal probably doesn't fulfill these expectations. Instead, it might be....
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Most companies building AI products today are stuck in the experimental phase, lacking the basic tooling and infrastructure needed to build reliable systems. It’s easy to spot once you know what to look for. Take the current trend of companies talking about load-balancing their AI operations across multiple providers. Sounds sophisticated, right? But it reveals something concerning about the state of AI engineering. Let me show you why.....
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Different types of coffee bean varieties available in India, their flavour profiles, and associated processing.
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Hexcom is a large, ongoing mission-based tactical play environment for Dungeons & Dragons 4th Edition, designed and operated as a Discord-native system rather than a traditional campaign. I created and ran Hexcom under a pseudonymous handle as both a game mode and an organizational experiment. At its core, Hexcom breaks play into short, self-contained combat […]
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Designing great resolver functions in GraphQL is quite unintuitive. Giving consumers the ability to describe their desired response payload means it’s possible for consumers to access fields via surprising paths through the graph, and this is something that can and should influence how you write your resolvers on a field level. Say you’re building a kanban board app like Trello or Asana. A board consists of many different named columns, wh..
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Designing great resolver functions in GraphQL is quite unintuitive. Giving consumers the ability to describe their desired response payload means it’s possible for consumers to access fields via surprising paths through the graph, and this is something that can and should influence how you write your resolvers on a field level. Say you’re building a kanban board app like Trello or Asana. A board consists of many different named columns, wh..
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Here's my monthly newsletter about what I'm up to, which I send in place of social media. What I did in January - Moved to San Francisco 🌁 - Joined the engineering team at Chroma - Bought a record p...
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Here's my monthly newsletter about what I'm up to, which I send in place of social media. What I did in January - Moved to San Francisco 🌁 - Joined the engineering team at Chroma - Bought a record p...
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Beth was a committed vegetarian when we started dating, had been for years. I was several years in, too. And I had cut out dairy and eggs a couple of years earlier. Vegans were less common then. People asked me about it. I worried that my choice made them feel inconvenienced or judged. I looked for inoffensive explanations. I liked that being vegan required discipline. I needed more discipline in my life. Being vegan helped. This was t....
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What goes into creating automated tests for your Python code? Should you focus on testing the individual code sections or on how the entire system runs? Christopher Trudeau is back on the show this week, bringing another batch of PyCoder's Weekly articles and projects.
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So you have Flipper in your ruby codebase for handling feature flags but… now you have used them and need a way to find them and help you pay down the tech debt of cleaning them up. Well good news, you can use AST Parsing to find all the instance. This simple parser walks all the Ruby code looking for calls to Flipper.enabled? and makes a list of the features flags used.
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Tool: CLI for JSON Schema Validation with Line Number and detailed error information
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blog.gripdev.xyz
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1 year ago
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eng
Quick post. My goal was, I thought, simple: Run a CLI tool which checks if a JSON document is valid for a JSON schema and returns the line numbers with error details So I head over to json-schema.org/tools and look for one. I try: ajv-cli ⛔ Doesn’t handle field type of date boon ❌ Doesn’t show line numbers Test-Json ❌ built in powershell cmdlet - Doesn’t handle if-then-else schemas or show line info check-jsonschema ❌ no line ..
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Earlier this week, I launched a new blog titled Digital Seams , which covers topics like APIs, platforms, UX, and interaction design, plus the related human connections. I hope you check it out! I'm writing Digital Seams because I looked at a pile of blog drafts and saw the running theme. Even looking back through my personal blog, I can trace similar ideas when I wrote about business hours for web companies ; and the efficacy of sel....
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