cmnybo

joined 2 years ago
[–] cmnybo@discuss.tchncs.de 5 points 1 month ago

The check digit is to catch a mistyped number.

[–] cmnybo@discuss.tchncs.de 23 points 1 month ago (1 children)

Is there a torrent available for it? If so, you would be better off paying for a VPN.

[–] cmnybo@discuss.tchncs.de 15 points 1 month ago (2 children)

They didn't even use an ADC. They used 555 timers to produce a pulse. They measured the length of the pulse to determine the potentiometer position. Since there are 4 analog inputs, they typically used the 558 timer which is the quad version of the 555.

[–] cmnybo@discuss.tchncs.de 8 points 1 month ago

WinRAR still exists? I think it's been a couple decades since I last used it.

[–] cmnybo@discuss.tchncs.de 5 points 1 month ago (4 children)

You can use object detection to send an alert if there is a person in your yard or if a car pulls into your driveway. It avoids the frequent false alerts you get with normal motion detection.

[–] cmnybo@discuss.tchncs.de 8 points 1 month ago (6 children)

It would be nice if Frigate supported the NPU in AMD CPUs. Then it could be used for object detection with CCTV cameras.

[–] cmnybo@discuss.tchncs.de 23 points 1 month ago

Even with multiple monitors, they are still useful. I use them to separate different tasks so I can switch back and forth with a keyboard shortcut.

[–] cmnybo@discuss.tchncs.de 8 points 1 month ago

It's pretty pointless if you allow it to use Microsoft's keys. It's a lot of work to set it up to only use your keys and that bricks certain poorly designed laptops.

[–] cmnybo@discuss.tchncs.de 49 points 1 month ago (1 children)

You can put each service on a separate subdomain and they will work fine.

[–] cmnybo@discuss.tchncs.de 2 points 1 month ago

On single sided PCBs, you can do a toner transfer on the component side for a silkscreen. You can apply solder mask too, but it's a rather messy process.

[–] cmnybo@discuss.tchncs.de 10 points 1 month ago (1 children)

Read the documentation. There are tools and features that will make some stuff a lot easier if you know about them.
Get familiar with creating your own symbols and footprints. No CAD program will have all the parts you need.
Don't modify the libraries that come with KiCAD. Those changes will be lost when you update KiCAD. If you need to modify a part, create a new library and copy the part into it.
Double check footprints before you make the board. It's no fun finding out the part doesn't fit when you go to solder it.
Set the design rules to match the capabilities of the PCB manufacturer and run a design rule check before making the board. Don't use the smallest traces and spaces they support if you don't have to.

[–] cmnybo@discuss.tchncs.de 31 points 1 month ago (5 children)

I would recommend using KiCAD for PCB design. You can either export the gerber files and send them to a PCB fab or you can etch or mill the board at home.

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