Show HN: Mini Christmas Trees with addressable LEDs and RP2040-based controller https://ift.tt/Ahp8kf7

Show HN: Mini Christmas Trees with addressable LEDs and RP2040-based controller Hello HN, these Mini Trees have a custom circuit board with WS2812 addressable LEDs on one side and a controller using an RP2040 microcontroller on the other, all inside a CNC'd Foamex PVC case. They stand around 23cm (9") tall. The firmware is written in MicroPython, which can be modified or replaced. Power is provided via USB-C, which is also used for programming. There is also a web-based animation sequencer to create lighting sequences in time to arbitrary audio, examples of which are on the linked page. This is similar to xLights ( https://xlights.org/ ), but much less powerful, and we hope to release firmware to interface directly with xLights soon. My colleague and I started kicking the idea for these around after making some custom circuit boards for another project, and thought we'd have a go at making smaller versions of some much larger exhibits we had made using 12 volt WS1812 bullet pixels. I hope you enjoy them, Merry Christmas! https://pixo.lighting December 2, 2022 at 05:50PM

Show HN: Google Fonts Checker https://ift.tt/sxBgpoh

Show HN: Google Fonts Checker I built a free tool you can use to check if a website is using Google Fonts. It tests the website using headless Chrome (Puppeteer), so all methods of font loading are captured, not just hardcoded references. https://ift.tt/50A72fG December 2, 2022 at 07:07PM

Show HN: SecretKeeper – The Secure, Free iOS Password Manager https://ift.tt/bRwQcT9

Show HN: SecretKeeper – The Secure, Free iOS Password Manager Hi all! I was very disappointed that my favorite password managers for iOS went to a subscription-only model, so I decided to take matters into my own hands. SecretKeeper is a FREE password manager for iOS, allowing you to safely store all of your passwords, banking information, etc. behind a single master password (or Touch ID/Face ID). All of your data is encrypted on-device, and is NEVER shared with a third-party. With SecretKeeper, you can easily auto-fill passwords in Safari, too! I'm still making enhancement to it, so don't hesitate to make suggestions if there are features you'd like to see! https://ift.tt/xKYBS54 December 2, 2022 at 06:51PM

Show HN: I made a Google Chrome extension automatically with ChatGPT https://ift.tt/cDWpdR7

Show HN: I made a Google Chrome extension automatically with ChatGPT https://ift.tt/waAfBY2 December 2, 2022 at 02:25PM

Show HN: Data Breach Source Detector https://ift.tt/ODEV9q1

Show HN: Data Breach Source Detector https://ift.tt/rHq5Rsk December 1, 2022 at 05:16PM

Show HN: Semantic Question Answering as a Service https://ift.tt/kadFAxG

Show HN: Semantic Question Answering as a Service Since managing the Large Language Models in production might be challenging, we've made a short demo to present how to use Cohere co.embed API and Qdrant Cloud to create a semantic QA system. This is based on bi-encoder architecture, and can be easily adopted to a different use case, like semantic search in any domain. https://ift.tt/rDBYhuO December 1, 2022 at 06:41PM

Show HN: I made a 2D shoot 'em up game with Go, using Entity Component System https://ift.tt/kMwYOnK

Show HN: I made a 2D shoot 'em up game with Go, using Entity Component System https://ift.tt/NWcIyZV December 1, 2022 at 04:59PM