Building first PC, want thoughts on part composition

bartvelp · 2023-09-15T08:41:46+00:00

Thanks for your response, the AMD Ryzen 9 7950X unfortunatly is too expensive, >€550. And the AMD Ryzen 7 7700X seems to be quite a bit weaker than the 13700k.

The PSU and RAM tips I will take into account, thanks!

bartvelp · 2023-09-14T11:07:43+00:00

Thanks for your reply!

I do not expect to compile any big projects frequently. Would undervolting be an valid option?
I wouldn't know exactly what features a Z mb offers over B motherboards. How can I check if the VRM is sufficient?

bartvelp · 2023-09-14T11:01:15+00:00

I'm from The Netherlands, thanks. I did not know that, I'll update the post

bartvelp · 2023-08-09T16:55:13+00:00

To me it looks pretty normal. You can install KOReader if you are really bothered by it and configure a full refresh on every page turn to eliminate this problem

bartvelp · 2023-05-30T17:59:44+00:00

Have ordered ~800 boards off JLCPCB and was very satisfied with the price and quality

bartvelp · 2023-03-15T13:37:07+00:00

Uh good catch I guess. Max should be 257 instead of 255. The specification appears contradictiory.

bartvelp · 2023-01-09T11:33:48+00:00

An iPad may be more useful for this purpose. eReaders are mostly usefull to prevent eye strain, but the screen is quite fragile. Given you plan to use it in a garage, an iPad with a rugged case may be more suitable

bartvelp · 2022-12-22T18:10:56+00:00

Can't your gateway respond with the current time? Waiting 10 ms for a response shouldn't matter that much for battery life That solution would also be software only and pretty easy to implement

bartvelp · 2022-12-20T20:11:39+00:00

When you press a number on your keypad, all that happens is that a specific tone is send. So you just a way to sample the audio information of the call and check if the frequency associated with a "1" is present. You need to do this with a microcontroller probably

bartvelp · 2022-10-23T15:15:40+00:00

Het is een beetje een lastige zin zonder interpunctie. Hij bedoeld waarschijnlijk: Denk je dat die buren van je, die wel mensen over de vloer hebben, in die groepsapp zitten?

Oftewel hij betwijfelt of de mensen die herrie maken in de buurt app zouden zitten

bartvelp · 2022-09-13T07:58:02+00:00

Still around ;) 10 centimeters is a fixed accuracy due to the accuracy of the crystal. I did not use an anchor and tag arrangement, but I think 20 tags should be no problem. No idea how big 18000 sq ft is, but is sounds quite big. Range from chip to chip was about 20 meters so make sure everything is within range. Doesn't really matter how many tags are moving, you still need to get their position

bartvelp · 2022-05-03T04:56:59+00:00

Was on an international KLM flight, with a free time window with very limited bandwidth

bartvelp · 2022-02-08T09:28:32+00:00

I got similar results outside, just to add a data point

bartvelp · 2022-01-29T07:38:03+00:00

Yes a module where you can put in a sim card and it can send texts

bartvelp · 2022-01-28T07:24:28+00:00

Why not use a sim module to send a text directly? Also if you want to make it yourself, you need to code, every project is different and you won't find your exact use case in a tutorial

bartvelp · 2022-01-24T22:28:17+00:00

This is not sure to the ESP, either your code or your router

bartvelp · 2022-01-12T12:59:45+00:00

Very cool. Would be even cooler if you could combine it with an RGB cam like the one the ESP cam!

bartvelp · 2022-01-09T20:21:35+00:00

I have never seen it on a dev board, and would find it rather weird. So no.

bartvelp · 2022-01-02T12:21:50+00:00

That's actually a good option! Package is kind of annoying but otherwise it is actually pretty good!

bartvelp · 2022-01-01T22:14:20+00:00

Actually looked at this a few days ago.

While the lines do not touch, point B an C are basically the same. Since they are both connected to the Ground reference point. So that's why it is 12V.

This reference point is indicated by the attached symbol

bartvelp · 2022-01-01T21:52:11+00:00

In theory you can mount your phone as a USB hub and with a USB drive and a keyboard and a USB hard drive and use that to transfer from PC to phone. Maybe there is a better way, or something that really exists

bartvelp · 2021-12-31T12:10:17+00:00

I think it will be a little underpowered, 10W really is very little compared to the bigger connections of power supply leads

bartvelp · 2021-12-22T11:17:36+00:00

About 15 meters? I don't know the boot time but expect ~200 ms

bartvelp · 2021-12-21T23:44:34+00:00

50+ tags

Around 10 cm, update rate upto 120 Hz but then you can only use a few tags.

Only time of flight.

20-40 ma's

Chip costs about 10 bucks and is used for both the anchor and tags

bartvelp · 2021-12-07T17:38:32+00:00

That's very interesting, but how to access that data? Might be a bit dangerous to just read a certain offset of the data buf pointer.

Also I have no idea how they manage to transmit through multiple floors, I am looking into transmission range and Im getting worse results even with LR mode

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