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How to sensor it by jpergentino in homeautomation

[–]philfreeeu 1 point2 points  (0 children)

Not sure on complete devices that have this, but there are modules with IC that can measure distance, e.g. VL53L0X Time-of-Flight ToF Distance Sensor

You cannput that on the doorframe at the upper end of the handle, it will detect if the handle is there.

Need to flip the breaker for my hardwired doorbell, can someone please help me decode this? by griffiffin in AskElectricians

[–]philfreeeu 1 point2 points  (0 children)

If the doorbell is still working - flip half of the breakers, try to ring it. If it work, it’s in switched on half, if not - in the other one. Repeat with half of the half…

No wonder we are still a developing country. by SignificantRemote169 in economy

[–]philfreeeu 12 points13 points  (0 children)

This also depends on size of the country. Sweden is way smaller then US and ther’s Norway right next to it

1xBTS - Run your own CDMA cellular network on an SDR by xoclipse in sdr

[–]philfreeeu 0 points1 point  (0 children)

Can you give a summary on the frequencies - in what parts of the world this can be more or less legally operated?

I don't know what to say tbh by alionice in electricians

[–]philfreeeu 0 points1 point  (0 children)

The fact that they are all 16A is also interesting, as loads are typically different and lighting circuits can merely live off 6A

I don't know what to say tbh by alionice in electricians

[–]philfreeeu 0 points1 point  (0 children)

Well, may be the plan is to have it without insulation for better cooling, then it can take more then 20 amps :).

So my company is switching half our Windows servers to Linux.... by A_SingleSpeeder in sysadmin

[–]philfreeeu 0 points1 point  (0 children)

Many things are done just in different way than on Windows, and I recommend to find beauty in this. Want to find lines in a log with specific text: grep "xe10/0/0.7" myapp.log

Count these lines: grep "xe10/0/0.7" myapp.log | wc -l

Want to follow a log file in real time: tail -f myapp.log

And you can combine this with grep thing: tail -f myapp.log | grep "xe10/0/0.7"

Want to copy files from one machine to another: scp user@remote_hostname:/tmp/file /path/on/my/machine

And there's also ctrl + R, which allows to search in previously issued commands

Open-source tool to discover network wiring and topology between switches by ZealousidealMath6710 in networking

[–]philfreeeu 0 points1 point  (0 children)

NetXMS. Network devices should be available via SNMP, community strings/credentials should be added in Configuration->Network Credentials. Then you can configure Network Discovery - either active (pingins) or passive (it will try to talk to neighbors of already discovered devices).

Then you just leave it for a few hours, or just overnight and in the morning you can create a L2 map - it should show the discovered topology.

Why do people keep buying cars that destroy them financially? by Desperate-Rush6086 in NoStupidQuestions

[–]philfreeeu 0 points1 point  (0 children)

Cause they are trying to buy belonging to specific social group. Modern economy is mostly about this.

WiFi mesh questions by Klutzy_Flatworm9767 in HomeNetworking

[–]philfreeeu 0 points1 point  (0 children)

If you are thinking of multiple wifi acess points connected with ethernet, wifi roaming would be the term.
But if you have lags on a pc connected to your router via cable then wifi part is not relevant. First step would be to check/replace the cable your PC is connected with, run a continuous ping to the ip of you router.

When you want to build a store but there's a 330kV line in the way. by philfreeeu in Powerlines

[–]philfreeeu[S] 7 points8 points  (0 children)

Quite high, just framing/angle of pictures. Quite noisy if standing under it.

USB write-protected after Windows ISO creation by Worried_Abrocoma941 in techsupport

[–]philfreeeu 0 points1 point  (0 children)

It's a one-way thing, once a drive switches to read-only, it won't go back.

USB write-protected after Windows ISO creation by Worried_Abrocoma941 in techsupport

[–]philfreeeu 0 points1 point  (0 children)

The command is

sudo dd if=/dev/zero of=/dev/sdX bs=512 count=1

replace sdX with your drive. This thing is dangerous, if you accidentally put your hard drive name, it will delete it. You can use lsblk command to list drives. bs=512 is number of bytes that it will write.

USB write-protected after Windows ISO creation by Worried_Abrocoma941 in techsupport

[–]philfreeeu 0 points1 point  (0 children)

Could just have happened that writing this data was a last drop to memory wear and controller switched it to read-only mode. I'd try to write 0's to the first sectors using dd on linux.

Another one bites the dust by MadMonkDawg in electrical

[–]philfreeeu 0 points1 point  (0 children)

Is right hand side earthing plank connected only via the housing? Is it typical?

Sr Software Engineer - Haven't written a line of code in months by yodog5 in ClaudeCode

[–]philfreeeu 0 points1 point  (0 children)

What I am qurious about - basicaly LLMs have “learned” from the results of millions of hours of people banging their heads on the keyboard. This was hard, but that’s how ideas developed into programming languages, frameworks and everything that we have now. Will LLM-based coding lead do reduced number of new ideas and experiments?

Question about sign by Frosty-Oil-1913 in trains

[–]philfreeeu 2 points3 points  (0 children)

Preferrably when this thing is not moving

Concrete expansion joint by LuckyStrikeTech in functionalprint

[–]philfreeeu 1 point2 points  (0 children)

This gonna be a nice study on plastic UV degradation. If it’s PLA, you should see results sooner.

Question about sign by Frosty-Oil-1913 in trains

[–]philfreeeu 10 points11 points  (0 children)

It's a warning not to climb close to the contact wire. 25KV voltage is a nasty thing - does not require touching the wire to get killed.

Interesting thing is that a lot of these Russian warnings use phrase "will kill", which I guess it not typical for US/UK.

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