frazar0 | 1 year ago | on: Reclaim Your Data: Freeing a Wi-Fi Sensor from the Cloud
frazar0's comments
frazar0 | 1 year ago | on: Show HN: I built a(nother) house optimized for LAN parties
> RGB: None
I chuckled.
frazar0 | 1 year ago | on: The Visualization of Differential Forms (2021)
Web Archive link: https://web.archive.org/web/20240921132410/https://web.tecni...
frazar0 | 1 year ago | on: Show HN: Open-Source Software for Designing 3D-Printable Luneburg Lenses for RF
Very interesting!
It would be even more appealing if you could show a test case where a high level metric (e.g., wifi download speed) improves with one of your lenses compared to a baseline scenario without lense.
Also, I expect the dielectric properties of the printing material will affect the design.
Which printing material have you tested exactly?
Do you know how much the performance changes when cheaper alternatives is used?
frazar0 | 1 year ago | on: 3rd Edition of Programming: Principles and Practice Using C++ by Stroustrup
Might be Morse code
frazar0 | 2 years ago | on: Byte Fanless Mini PC – Built for Linux
> Fanless 0 dB design
Note that 0 in dB scale indicates a 1:1 ratio with something, and not a zero in linear scale. Indeed, a zero in linear scale corresponds to -infinity in dB scale.
frazar0 | 2 years ago | on: Fairphone 4 is coming to the US
Fairphone 4 has been my main and only phone for several months now. Great experience, very good battary life. Performance-wise, I haven't noticed any significant difference compared to traditional phones. The only drawbacks might be the camera and thickness, but honestly I don't care much.
Of course, much depends on your use case and expectations. YMMV.
frazar0 | 3 years ago | on: Porsche’s e-fuel burns just like the real thing
frazar0 | 3 years ago | on: Ultrathin Metasurface Displays Take Aim at the LCD
Don't know much about the invisibility cloak. But in wireless communications the "better smart mirror" idea is being investigated to achieve arbitrary reflection directions that defy Snell's law [1][2]. The objective is to hang these "mirrors" on walls/buildings and reflect the incident power towards areas where the reception is poor.
frazar0 | 3 years ago | on: Image Compression with Singular Value Decomposition
One issue with SVD is its significant time complexity compared to, for example, the Discrete Cosine Transform used in JPEG
frazar0 | 4 years ago | on: Rust maintainer perfectionism, or, the tragedy of Alacritty (2020)
The author raises an interesting argument, but I don't see how the "maintainer perfectionism" issue is specific to Rust in particular.
Indeed, the two examples they mention are both related to Rust somehow, but is it enough to generalize to the whole Rust ecosystem?
frazar0 | 5 years ago | on: Vanishing zeroes for geometric algebra in Rust
An alternative could be to create another zero-sized type for NaN and Infinity
frazar0 | 7 years ago | on: SpaceX’s Starlink Constellation construction begins
Interesting point. However, I believe frequency trading relies on connections with extremely low latency, while satellite links are characterized by high Round Trip Time.
frazar0 | 7 years ago | on: Show HN: FarmNet, an open-source LoRA agricultural sensing/actuation network
If you're looking for something Arduino-compatible, you should consider the RFM9x family of boards, based on the SX1276 LoRa chips.
Breakout board from Adafruit: https://www.adafruit.com/product/3072
frazar0 | 8 years ago | on: Meltdown and Spectre Linux kernel status
A number of ways are listed here [1]
1. With dmesg
dmesg -wH | grep 'page tables isolation'
2. With /proc/cpuinfo
grep cpu_insecure /proc/cpuinfo && echo "Patched" || echo "Unpatched!"
[1] https://askubuntu.com/questions/992137/how-to-check-that-kpt...
frazar0 | 8 years ago | on: Enabling Rust on Embedded Platforms – Linux, RTOS, Bare Metal
Yes.
The issue is actually being worked on. For example, the draft RFC for fallible collection allocations is now in final comment period [0].
Edit: fix link
page 1
One more very good reason for preventing requests to "the cloud".
However, I find it funny that the lack of proper certificate validation (which is a security issue in principle) is a pre-requisite for the "de-cloudification" process.