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Vibe-Coding a PCB – surprisingly good

news.ycombinator.com Chris Greening 2025-07-29 17:47:26

After "vibe coding" a software-based vibing button in my last video, I decided to take things one step further: vibe-coding the actual hardware. The challenge? Let AI design a working ESP32-S3 development board, from scratch. Tools of the Trade For this experiment, I used Atopile — a tool that lets you define a hardware project using code and turns it into a KiCad PCB. I also enlisted Claude, an AI coding assistant that seemed to outperform Cursor for this task. The Prompt The board needed t

Topics: ai components esp32 s3 usb

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Alienware's 27-inch 280Hz QD-OLED monitor is now available for $550

engadget.com Unknown 2025-07-31 22:00:28

Engadget has been testing and reviewing consumer tech since 2004. Our stories may include affiliate links; if you buy something through a link, we may earn a commission. Read more about how we evaluate products . Alienware has just released a pair of gaming monitors that offer affordability with very few compromises while using Dell's new AW30 design language. Announced earlier this year, the key model is the 27-inch AW2725D 280Hz QD-OLED QHD (2,560 x 1,440) monitor with one of the lowest price

Topics: 320hz accuracy alienware aw2525hm dell

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The 100+ best Prime Day deals under $100

theverge.com Sheena Vasani 2025-07-31 22:00:00

Theis also discounted to $47.49 ($32 off) at Amazon , the lowest price we’ve seen on the compact Bluetooth speaker. Currently, it’s the smallest offered by Ultimate Ears, yet it doesn’t skip on features. It delivers a robust 12 hours of continuous playback, along with an IP67 rating for dust and water resistance. It’s small enough to throw in a hip bag, too, and can be clipped to everything from your shower head and backpack to the handlebars on your bicycle, allowing for ultimate portability. I

Topics: 12 32 49 99 ultimate

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Here are 55 Prime Day deals you can nab for $50 or less

theverge.com Brandon Russell 2025-08-06 18:00:00

Theis also discounted to $47.49 ($32 off) at Amazon , the lowest price we’ve seen on the compact Bluetooth speaker. Currently, it’s the smallest offered by Ultimate Ears, yet it doesn’t skip on features. It delivers a robust 12 hours of continuous playback, along with an IP67 rating for dust and water resistance. It’s small enough to throw in a hip bag, too, and can be clipped to everything from your shower head and backpack to the handlebars on your bicycle, allowing for ultimate portability. I

Topics: 12 32 47 499 ultimate

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Did you know: Your phone supports a 320MP camera, but companies choose to skip them

androidauthority.com Unknown 2025-08-10 03:00:04

Ryan Haines / Android Authority The smartphone industry has been through a brutal megapixel war over the last few years, jumping to 48MP, 50MP, 64MP, and 108MP cameras. Companies then upped the ante in 2022 and 2023 by offering 200MP camera phones, and we’ve stayed at this resolution since then. Did you know that recent flagship Android phones actually support more than 200MP sensors, though? In fact, they support 320MP cameras. However, companies haven’t adopted 320MP cameras just yet. Here’s

Topics: 320mp camera cameras phone support

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Save $350 on a spec’d out Samsung Galaxy Book 5 Pro laptop

androidauthority.com Unknown 2025-08-14 23:50:41

If you’re looking to get a high-end laptop with a stunning design, Samsung makes some of the best ones. We would go as far as saying it’s Apple’s main competitor on the Windows side! Of course, these aren’t cheap laptops, but today we have a good deal for those who want something both capable and gorgeous. Buy the Samsung Galaxy Book 5 Pro with 32GB of RAM and 1TB of storage for $1,299.99 ($350 off) This offer is available directly from Samsung’s website. The discount applies to the spec’d out

Topics: 1tb 32gb inch samsung storage

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Show HN: Open-Source International Space Station Tracker ESP32/Arduino for $20

news.ycombinator.com Unknown 2025-08-18 10:34:53

International Space Station Tracker SpaceStationTracker is an application that displays the current position of the International Space Station on a 2D world map. It runs on a ESP32-2432S028R ILI9341 device with a 2.8" screen, commonly known as the CYD "Cheap Yellow Display", which costs $20 or less. The code was written using Arduino IDE / ESP32 development environment in c++. I used this project to learn programming for ESP32/Arduino/CYD. It includes topics such as graphics using LVGL, wifi

Topics: arduino connect cyd esp32 wifi

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So you want to serialize some DER?

news.ycombinator.com Unknown 2025-08-18 12:19:57

So you want to serialize some DER? (Editor’s Note: My day job is at Anthropic.) This story starts where all good stories start, with ASN.1. ASN.1 is… I guess you’d call it a meta-serialization format? It’s a syntax for describing data abstractly (a notation, you might say), and then there’s a bunch of different actual encodings that you can use to turn data into bytes. There’s only one encoding I choose to acknowledge, which is DER (the Distinguished Encoding Representation, it’s got a monocle

Topics: claude code i32 length llvm

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C++ Seeding Surprises (2015)

news.ycombinator.com M.E. O'Neill 2025-08-18 15:11:40

Properly seeding random number generators doesn't always get the attention it deserves. Quite often, people do a terrible job, supplying low-quality seed data (such as the system time or process id) or combining multiple poor sources in a half-baked way. C++11 provides std::seed_seq as a way to encourage the use of better seeds, but if you haven't thought about what's really going on when you use it, you may be in for a few surprises. In contrast to C++11, some languages, such as popular script

Topics: 32 bit seed seed_seq std

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Amazon Is Selling Best Buy’s TV at a Loss, This 32″ HD Smart TV Is Now Almost Free

gizmodo.com Gizmodo Deals 2025-08-28 15:40:43

The Insignia 32″ smart HD Fire TV is a brand you’d most often find at Best Buy (which owns the brand) but is now taking Amazon by storm with a deal that’s simply unbeatable. For an all-time low price of $69, down from $129 (46% off), you get a 32-inch smart TV with features and quality way better than what you’d typically pay for this amount. This early Prime Day deal is open to everyone, not just Prime members, and it’s already the best-selling smart TV on the entire site. If you’re after a ba

Topics: 32 amazon features smart tv

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Basic Facts about GPUs

news.ycombinator.com Unknown 2025-08-30 09:15:12

Basic facts about GPUs last updated: 2025-06-18 I’ve been trying to get a better sense of how GPUs work. I’ve read a lot online, but the following posts were particularly helpful: This post collects various facts I learned from these resources. Acknowledgements: Thanks to Alex McKinney for comments on independent thread scheduling. Table of Contents Compute and memory hierarchy A GPU’s design creates an imbalance since it can compute much faster than it can access its main memory. An NVID

Topics: 32 block memory thread threads

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This 32-inch Insignia Fire TV is only $69.99! (Record-low price)

androidauthority.com Unknown 2025-09-01 22:44:29

We know this is not the most exciting TV around, but it isn’t supposed to be. Instead, it is meant to be a good screen for the kitchen, dining room, or a smaller bedroom. There’s also a reason why it’s Amazon’s top-selling TV! It is super cheap, especially right now that it’s on sale for a mere $69.99. Buy the Insignia 32-Inch F20 Series Amazon Smart TV for just $69.99 ($60 off) This offer is available from Amazon, but since Insignia is a Best Buy brand, it is shipped and sold by Best Buy. We’r

Topics: 32 amazon inch insignia tv

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Bits and bobs related to Wireless-Tag's WT32-ETH01 board

news.ycombinator.com Unknown 2025-09-10 14:37:09

Unofficial guide to the WT32-ETH01 What is this thing and why would I use it? The WT32-ETH01 is effectively a small, cheap ESP32 development board with Ethernet, WiFi, and GPIO pins, made by a company called "Wireless-Tag" (WT). As of this writing, it's around $15 at JacobsParts and around $7 from AliExpress. There aren't a ton of ESP32 boards with Ethernet, and the WT32-ETH01 is by far the smallest, cheapest, and simplest. (The OLIMEX ESP32-POE and wESP32 are the other notable options.) So,

Topics: esp32 eth01 pins use wt32

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Latest Tech News

Vibe-Coding a PCB – surprisingly good

Alienware's 27-inch 280Hz QD-OLED monitor is now available for $550

The 100+ best Prime Day deals under $100

Here are 55 Prime Day deals you can nab for $50 or less

Did you know: Your phone supports a 320MP camera, but companies choose to skip them

Save $350 on a spec’d out Samsung Galaxy Book 5 Pro laptop

Show HN: Open-Source International Space Station Tracker ESP32/Arduino for $20

So you want to serialize some DER?

C++ Seeding Surprises (2015)

Amazon Is Selling Best Buy’s TV at a Loss, This 32″ HD Smart TV Is Now Almost Free

Basic Facts about GPUs

This 32-inch Insignia Fire TV is only $69.99! (Record-low price)

Bits and bobs related to Wireless-Tag's WT32-ETH01 board

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