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What is your future ?

Started by a a in sci.electronics.design4 days ago 1 reply

https://twitter.com/i/status/1707515534034583697

https://twitter.com/i/status/1707515534034583697


Raspberry Pi 5 coming

Started by Jan Panteltje in sci.electronics.design5 days ago 1 reply

https://arstechnica.com/gadgets/2023/09/raspberry-pi-5-available-for-preorder-is-faster-and-has- a-custom-i-o-chip/ No analog audio out 3.5 mm...

https://arstechnica.com/gadgets/2023/09/raspberry-pi-5-available-for-preorder-is-faster-and-has- a-custom-i-o-chip/ No analog audio out 3.5 mm connector anymore... Not sure I want a Pi5. Sort of becomes a multimedia HD player, OK. Will wait for user experiences... I do have some USB audio sticks for my Pis, stereo out, mike in.


Interesting gas sensor business

Started by Jan Panteltje in sci.electronics.design5 days ago 11 replies

Interesting gas sensor -business- In 2019 I bought a gas sensor, to warn me if cooking gas is leaking. About 30 USD back then, runs on 12V a...

Interesting gas sensor -business- In 2019 I bought a gas sensor, to warn me if cooking gas is leaking. About 30 USD back then, runs on 12V a wallwart that came with it, and has a VERY LOAD beep if it detects even a slight bit of gas. So yesterday. while working upstairs with the soldering iron on some audio stuff, I heard a load beeeeeeep continuous beep. Thought first it was one of the f...


speed test

Started by John Larkin in sci.electronics.design5 days ago 65 replies

I signed up with Comcast for, I think, 30 megabit cable internet. I had a service problem a while back so they upgraded "for free" to 50. I just...

I signed up with Comcast for, I think, 30 megabit cable internet. I had a service problem a while back so they upgraded "for free" to 50. I just ran a speed test and it's 920+38 Mbits. This is with a CAT5 cable right from their modem. At work, we have a MonkeyBrains dish. We pay for 50+50 and get 500+500. This seems to be a trend, much faster internet than we signed up for, same price. ...


Greek agriculture devastated for five or more years

Started by Fred Bloggs in sci.electronics.design6 days ago 4 replies

"Storm Daniel wiped out a quarter of Greece’s annual farming production, as a result of deadly flash flooding that submerged fields and...

"Storm Daniel wiped out a quarter of Greece’s annual farming production, as a result of deadly flash flooding that submerged fields and drowned livestock. The central region of Thessaly was especially hard hit. Thessaly produces a quarter of the country’s food." “The agricultural production isn't destroyed just for this year. The thick coat of silt means i


OT: Warning: molnupiravir covid drug linked to viral mutations that spread

Started by Jan Panteltje in sci.electronics.design6 days ago 2 replies

Anti-viral drug backfires: COVID drug linked to viral mutations that spread ...

Anti-viral drug backfires: COVID drug linked to viral mutations that spread https://arstechnica.com/health/2023/09/covid-anti-viral-drug-is-actively-helping-sars-cov-2-mut ate-and-evolve/ Merck's small-molecule molnupiravir linked to mutated viruses that spread in people.


Spyware can infect your phone or computer via the ads you see

Started by Fred Bloggs in sci.electronics.design6 days ago 4 replies

"Now, according to an investigative report by the Israeli newspaper Haaretz, an Israeli technology company called Insanet has developed the means...

"Now, according to an investigative report by the Israeli newspaper Haaretz, an Israeli technology company called Insanet has developed the means of delivering spyware via online ad networks, turning some targeted ads into Trojan horses. " "The silver lining is that Sherlock [ the spyware ] appears to be expensive to use. According to an internal company document cited in the Haaretz report, a ...


Alien life may not be carbon-based, new study suggests

Started by Jan Panteltje in sci.electronics.design6 days ago 21 replies

Alien life may not be carbon-based, new study suggests https://www.space.com/alien-life-not-carbon-based-autocatalysis-common Intriguing...

Alien life may not be carbon-based, new study suggests https://www.space.com/alien-life-not-carbon-based-autocatalysis-common Intriguing 'autocatalytic' reactions appear to be far more common than scientists had thought. Actually a search of 2 centuries of digitized documents? Not sure how / if such old experiments will be valid.


SiC fet gate damage

Started by John Larkin in sci.electronics.design6 days ago 21 replies

Does anyone know anything about the effects of negaive-voltage zenering the gate of a SiC power fet? Specifically, I'm designing a gate driver...

Does anyone know anything about the effects of negaive-voltage zenering the gate of a SiC power fet? Specifically, I'm designing a gate driver for the Cree C2M0280120D and I'm wondering about what might happen in the rare case that I zener the gate by a mA or so. The intent is to drive it -5 to +15, but the -5 could be more in some pathological case. I'll get some from stock later and te...


Helpful app for hearing test, whether on not you buy something

Started by micky in sci.electronics.design7 days ago 8 replies

This app came with the yoke-style sound amplifier I bought, but it seems to work with a cell phone and earbuds too, and though it's not what...

This app came with the yoke-style sound amplifier I bought, but it seems to work with a cell phone and earbuds too, and though it's not what an audiologist would do, IMO it's pretty good, and easy, and includes more than I would have espected** you don't have to buy the sound amplifier if you don't want, though I've included the link **It tests hearing at iirc 4 frequencies and goes up and ...


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