Viewing profile — zsellera

It's been a struggle to allocate cost-optimized VPS at them for months now (in some regions), they were very often out-of-stock.

RFID/transponder-based lap timing for RC-cars, using RTL-SDR/HackRF. https://openstint.org/ -- https://github.com/zsellera/openstint

Most companies have region-specific price lists. My Spotify subscription costs about 60% of what the same plan costs in the US (2200 HUF vs. 11 USD). In the electronics industry, e…

What you "more bandwidth more noise" people miss is the difference in randomness: the noise is random while the signal is not. In case of gaussian noise, double the bandwidth means…

The same essential skills make a great PO/business analyst as a great engineer: the ability to think in abstract terms and the ability to debug. When successful POs write a book or…

After doing some math it doesn't feel like a ddos: - $104k at ($55 / 100 GB) = 189 TB of traffic - It means the popular ~3.5 MB media file was downloaded ~54M times - Which sound l…

There is a little to no consumer market for quality stuff (ppl buy based on price, maybe lm/W, maybe CRI95+). You'll see great LED installations at: - offices & commercial building…

If you ever wondered what makes LED lights feel great: it's the strategic mixing of LEDs with different characteristics. Here's a free tool that helps designing such fixtures: http…

The risk of an accident is much lower than the risk of full-on wars w/o them. Nuclear weapons are the reason I can raise my children in a relative peace.

This project is a great showcase of what whitelabel streaming providers can do. Back when Youtube and Netflix started streaming, it was a huge deal technically (codecs, infrastruct…

So far Orban's regime is the only eu/western government involved in this scandal. I see that no surprise. There is no need of official government approval to conduct such surveilla…

Search ebay/etc for "EC/TDS meter", it's ~10 USD. Cheap ones do work, no worry. Keep your drain water at a stable EC, somewhere between 500 and 2500 uS/cm, and you're golden. If th…

My experiences are different. I think most assembly-houses self-source some parts, and they do it in large quantities (like 1M+ parts/year). As such, they buy at extremely good pri…

LOL, no. It's hard to implement hardware functions in software if it's impossible to source the MCUs my software stack was built on. What's really happening is that I (and likely m…

That waterfall doesn't look like any sensible digital modulation to me, or at least if I were doing HFT, the spectrogram would look totally different. I think the source is rather …

Don't even try. Use docker, there are official pre-built images. It's easy: docker run -p 8888:8888 -v ~/Code/actual-project/:/home/jovyan jupyter/datascience-notebook Note ~/Code/…

This was the most disgusting thing I clicked on this month.

Somewhat. Make sure the metal case is earthed, and the case is the only point where earth and internal grounds are connected. Far field emissions rarely comes from pcb traces thoug…

It's nothing new and is know in the community for a very long time. BfR scientists should rather focus on the safety of industrial injection molding, where the smell is barely bear…

I'm kinda into tomatoes: the same variety can result different taste and nutritional value (dry matter content) depending on the growing conditions. I know two greenhouse growers, …

Just out of curiosity: the tone appearing is me connecting my CE-certified Dell computer to a CE-certified Asus router, using a standard cat5-e cable. https://ibb.co/0rxKq6L (Cubic…

I think what happens is the transformer inside the rj45 connector couples a litte of the differential mode signal (that should not radiate significantly) to all wires in the cable …

As someone recently participated in an EMC measurement, I really don't understand how anyone passes these tests without some kind of cheating (using double-shielded, very expensive…