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1. Inside a $1 radar motion sensor Total comment counts : 15 Summary The article discusses the author’s exploration of the RCWL-0516 microwave motion sensor and their attempt to understand its functioning. The author explains that the sensor uses the BISS0001 infrared motion sensor chip and works by detecting millivolt-level changes in the low frequency IF signal created when a moving object reflects the transmitted carrier signal. The article provides a detailed analysis of the sensor’s components and oscillators....

1. The XAES-256-GCM extended-nonce AEAD Total comment counts : 10 Summary The article announces the existence of the XAES-256-GCM specification, which is an authenticated encryption with additional data (AEAD) algorithm. It has 256-bit keys and 192-bit nonces. The algorithm was designed with the goal of enabling safer and more user-friendly APIs for automatically generating fresh nonces. It is compliant and compatible with various settings where alternative large-nonce AEADs are not an option....

1. Software galaxies Total comment counts : 52 Summary error Top 1 Comment Summary The article describes how each dot represents a program within complex projects, and each dot corresponds to at least one person. This illustrates the immense complexity of these projects, which can be seen as large human architectures. Top 2 Comment Summary The article discusses the difficulty of navigating galaxies using a touch screen device. The author explains that moving forward with a single touch is easy, but it becomes challenging to select and view specific points of interest....

1. Show HN: I built an indie, browser-based MMORPG Total comment counts : 45 Summary error Top 1 Comment Summary The author of the article is experiencing issues with their SMTP email limit, which is causing failures with TCP connections. They will investigate further tomorrow. The article also mentions the success of over 5000 logins, suggesting the need for a better SMTP email provider to prevent failures from impacting other systems....

1. One Million Checkboxes Total comment counts : 60 Summary error Top 1 Comment Summary The developer of a certain project is surprised by its popularity, resulting in server issues that will persist for some time. Top 2 Comment Summary The author starts by expressing frustration about people unchecking their boxes. They wonder why everyone can’t just get along and click all the boxes. They then mention feeling alone until they met someone else who also checks boxes quickly....

1. SIMD-accelerated computer vision on a $2 microcontroller Total comment counts : 10 Summary error Top 1 Comment Summary The article suggests that silicon, which is cheaper than a cup of coffee, is impressive. It questions whether the issue lies in the chip being too cheap or the coffee being too expensive. Top 2 Comment Summary The article promotes a product called Edge Impulse, which offers low-level optimization of deep learning, computer vision, and DSP workloads for various microcontrollers and CPUs, as well as exotic accelerators and edge GPUs....

1. Microfeatures I love in blogs and personal websites Total comment counts : 89 Summary The article discusses three types of features in programming languages: fundamental features, deeply engrained features, and convenient features. The focus is on convenient features, which are relatively easy to implement and improve the quality of life for users. The author then explores two specific features that can enhance websites: sidenotes and tables of contents. Sidenotes provide additional details or sources without interrupting the main flow of an article, while tables of contents improve navigation and communicate the structure of a webpage....

1. The biggest CRT ever made: Sony’s PVM-4300 Total comment counts : 31 Summary In 1989, Sony introduced the largest Trinitron CRT television ever built, the KV-45ED1 or PVM-4300. It was advertised as a 43-inch model, but actually had a 45-inch tube inside. Weighing around 450 pounds and standing at 27 inches tall, it was too big to fit through a standard door frame and was meant for the living room rather than a bedroom....

1. Language is primarily a tool for communication rather than thought [pdf] Total comment counts : 56 Summary error Top 1 Comment Summary The article discusses the different ways in which people experience their thoughts. It mentions that some people have a strong internal monologue while thinking, while others do not. There is also a mention of some people visualizing their thoughts as text, such as when remembering names. The University of Wisconsin conducted a study on this topic and provides a quiz for readers to determine their own thinking preferences....

1. MeshAnything – Converts 3D representations into efficient 3D meshes Total comment counts : 17 Summary The article is about a new model called MeshAnything that can extract meshes from any 3D representations, mimicking the work of a human artist. This model can be used in various 3D asset production pipelines, such as 3D reconstruction and generation, to convert their results into Artist-Created Meshes (AMs), which are of higher quality and more efficient for storage and rendering....