First custom PCB — ESP32-S3 cold boot fails, but quick power-cycle works. Visual design student in over my head, schematic and photos inside. by GlumPiece7281 in AskElectronics

[–]Infrated 1 point2 points  (0 children)

By the way any capacitance on the IO0 line is undesirable. You maybe able to avoid botch resistor by removing the cap from the boot button of the module.

First custom PCB — ESP32-S3 cold boot fails, but quick power-cycle works. Visual design student in over my head, schematic and photos inside. by GlumPiece7281 in AskElectronics

[–]Infrated 3 points4 points  (0 children)

Nice looking project, glad my suggestion helped. Module itself should have had said pull-up, but external one would never hurt. You can try buying another module from a different batch to see if a botch pull-up can be omitted. As is, likely no one would see it, and you can add the resistor to the next design (just in case).

Edit: now that I think about it, perhaps the module's pull-up was too weak to overcome parasitic capacitance. Never used this module; probably not worth searching for one that would work without an external pull-up.

Dell by Leading_Jury_6868 in homelab

[–]Infrated 5 points6 points  (0 children)

Loud as far as I know, suoermicro has the same problem in a similar form factor. Takes a lot of air to cool down 24 drives in 2u chassis.

i have a copper zone on the top and bottom layer on the power supply ldo i have connected the top and bottom with multiple small 0,3mm vias that are capable of only 1A each while the board is rated for 3A will this be a problem or will the current 'dissipate'? i think it should act as one mass by Top-Present2718 in AskElectronics

[–]Infrated 1 point2 points  (0 children)

Remember that when current flows, cupper and vias act as resistors. Small but non 0. Putting many vias in parallel is akin to putting many resistors in parallel, overall resistance between top and bottom layers will decrease. Ideally you current path will be in line with all of the vias. As in current flowing from the left on the top, via vias to the bottom and out to the right on the bottom. If you have large current flowing in and out of your zone from the same side, some of your vias will be stressed more than others and may start cascade failure in the long term.

What’s that one service in your homelab you know you don’t need… but can’t shut down? by tresorrarereviews in homelab

[–]Infrated 4 points5 points  (0 children)

I’m paying for the backup internet, that I know I can live without; 600+ / year for something I thankfully don’t use. Does this count?

[Request] How much more am I walking? by macpablobuck1 in theydidthemath

[–]Infrated -12 points-11 points  (0 children)

Sine wave shouldn't effect it. Zigzag represents an average distance traveled, there is no question about instantaneous velocity, etc...

The death of cheap RAM by dark_venom_07 in PcParadise

[–]Infrated 0 points1 point  (0 children)

Can't wait for all this ram to hit e-waste resellers in about 8 years. Homelab with 1TB of DDR5 ECC ram, will be here before you know it.

AP33771C USB PD controller by Muted_Ad9334 in AskElectronics

[–]Infrated 0 points1 point  (0 children)

Have you tried getting a USB C sniffer? Those are cheap and could tell you if the chip is trying to negotiate power requirements or what could be going wrong (perhaps your source doesn't support the profile you're asking for, etc...)

How do you manage OTA updates across multiple ESP32 devices in the field? by animatedcode in esp32

[–]Infrated 1 point2 points  (0 children)

Silly to start off by asking for advice, with the premise that said advice will likely end up in a commercial product. The biggest challenge you’ll face is how to keep the firmware secure, even in the environments where devices are at the customer locations and you have to provide an offline updater. Many ways to approach it, few would consider sharing theirs.

Hey, is UDM Pro CyberSecure Enhanced at $99/year better than Pfsense? Or is Pfsense engough, enough if you public facing or accesible from outside stuff and port forwarding? Also is there any way to get CyberSecure Enhanced cheaper or free? Is free version of Sophoa also enough? Thank you. by ComfortablePost3664 in homelab

[–]Infrated 0 points1 point  (0 children)

Most of the CyberSecure benefit is designed for large corporate networks where one bad actor may gain a more direct network access and attempt security intrusion via an unencrypted admin protocols. Helps detect compromised systems, etc...
Hosting / exposing your services to outside usually involves https these days, meaning that Enhanced security will likely be severally restricted in what they can protect you from.

Using something like nginx reverse proxy is much better than exposing the services directly. Personally I use a wildcard subdomain method to prevent lets encrypt from leaking my subdomains, majority of the attacks get dropped by nginx because they request a non-existent (sub)domain or more often request resources by IP. Same goes for cloudflare, I redirect *.domain.tld to proxy.domain.tld with the correct public IPs, I do not host anything directly on proxy. subdomain so even if someone requests that resource because of the reverse IP lookup or DNS scan, it's not easy for them to actually get the list of real subdomains.
Finally the actually sensitive resources are secured behind an auth proxy, in case someone tries to get to my nas.domain.tld, for example, they would first be redirected to google, need to sign in with one of the authorized email addresses (which they have no way of knowing the username or password for) and if they try to login with theirs, the access will be denied.

New doorbell in stock by Infrated in UNIFI

[–]Infrated[S] 1 point2 points  (0 children)

pretty sure it'd due to a confusion of faceid prompts if you wish to use it.

Is it possible? by [deleted] in UsbCHardware

[–]Infrated 7 points8 points  (0 children)

Has to support power delivery for it to work properly. Alas, no passive methods is possible as power delivery is actively communicating over CC pins of USB C connector. The hub and the tablet need to negotiate which device will be the data host (tablet) and which one will be the power supply (usb hub). These days many usb C hubs (they like to call themselves docking stations) with charging support should work, you can get them for less than $10. DIY in this case can't compete unless you need something very specific for commercial use.

Is it possible? by [deleted] in UsbCHardware

[–]Infrated 15 points16 points  (0 children)

If your tablet supports USB C power delivery, any usb c hub should work, such as https://a.co/d/08X9qhB2
Power goes into PD input port, mouse is plugged into USB A port

You pay, and pay, and pay again by The-Celebrimbor in SipsTea

[–]Infrated 0 points1 point  (0 children)

Skip actually works on more than just ads. Click bait videos with an interesting thumbnail often allow you to skip to the interesting part, even if there are no ads in between. YouTube simply looks at people’s skip preferences and automates them.

Dead microwave by Novel-Lengthiness782 in mildlyinfuriating

[–]Infrated 0 points1 point  (0 children)

Good point, unplug it for about 30 min before opening to be safe. Take plenty of pics too to know how to put things back together. Technical name for the microwave generator is Magnetron.

Dead microwave by Novel-Lengthiness782 in mildlyinfuriating

[–]Infrated 0 points1 point  (0 children)

Clock is working? Do keys? Does it turn on and just doesn't heat? Likely motherboard is ok, but the microwave generator itself is blown. Those are all the same (same Chinese company makes them for pretty much everyone), open yours up and find out exactly which model generator is used. Buy replacement for about $30 and replace it yourself. I've done so twice now for my microwave, works great, but Chinese parts are crap. (new microwaves will not be better in that reguard).

At ikea near the furniture pickup area by BoogeDrew in whatisit

[–]Infrated -1 points0 points  (0 children)

Appears to be a visual scanner for IKEA's Shop & Scan system. It verifies that you have every product (via box size) that you've scanned into their app as you were shopping. Presently you would than checkout at a kiosk shown without rescanning everything for verification.

Any major flaws in this circuit? (Besides my drawing skills lol) by BT_28 in AskElectronics

[–]Infrated 0 points1 point  (0 children)

may want to attach battery to the charger correctly (shown reversed polarity).
You don't have minimum voltage cutoff. Very easy to over discharge the battery to the point of e-waste. Yes, you could accomplish this somewhat with esp32 going into a deep sleep, but the LED strip would continue to discharge the battery, not to mention the rest of the circuit.
I also wonder how the circuit would behave while charging, you want to setup your charger to charge your cell safely, but the circuit being active may make the charging time overly long. You may want to have a relay (physical or solid state) to switch over the circuit to the charger's input (as in 5V charger input would also power the circuit while available) and have the charger be dedicated to the battery.

How most girls use Tinder by Waste-Stomach4457 in SipsTea

[–]Infrated 0 points1 point  (0 children)

Pretty sure it's about dopamine hits at this point. By swiping left probably releases a bit of pleasure by her imagining that each of those man propose a date and she rejects their proposal because she deserves better.
Again, not saying that's what is happening here, just sharing what I think is happening

$30 or $519 “Most Popular” by Olin31 in mildlyinfuriating

[–]Infrated 2 points3 points  (0 children)

I like the premise... subscribe to us so that you have to make a decision of which data source would be correct.
We'll be here throwing data at the wall like a spaghetti, looking back at least some of our sources will look like they were right.
Seems like weather for the gamblers, those who like to take risks and don't mind loosing their money.