First part of a new long term home project coming in. An #Ubiquiti PoE+ switch to power a small #Kubernetes cluster built using #raspberrypi nodes. Going to blog about every step once it has been completed. But it is going to be a few quarters long project doing bit by bit
So instead I went with this tower, we have the same one downstairs powering the living room #lego display. Plenty of space and nothing will block each other. Plus it comes with 4 #USB powers we will utilize for (more) lego display lights and planned #ESPHome sensors on the stairs to the home office. Just need to pick and time and date as doing this will take that entire switch down, and create a network split between two and one control plane #kubernetes nodes.
Troubleshooting battery powered LED lights that quit working after a few weeks. No charge LED and measuring where the USB’s 5vdc is being lost I realize there isn't any at all, even at the jack. Remembering some of the usb-c spec, I try an A to C cable with old USB A power cube and the device starts charging. The C to C cable which charges an iPad doesn't do a thing.
After a little searching:
TL;DR: USB-A charging ports by default provide 5V to whatever is plugged in. USB-C charging ports don't.
EDIT: Beantwortet. Ich habe ein 5-V-Steckernetzteil gefunden und an den USB3-Hub angeschlossen, damit werden auch die neuen DVD-Laufwerke erkannt. Danke für die Aufmerksamkeit 🙂
Ich hantiere hier derzeit mit drei externen USB-DVD-Laufwerken, um meine DVD-Sammlung zu rippen. Eines davon hab ich schon länger, zwei habe ich vor einiger Zeit neu dazugekauft. Alle drei sprechen USB3, alle drei sind markenlos und aus China.
Bei den zwei neueren stand bereits im Angebot, daß man sie nicht über einen Hub betreiben könne. Die beiden hab ich tatsächlich vorne am PC hängen (eins davon aus Platzgründen am USB2), und sie funktionieren einwandfrei. Sie funktionieren allerdings tatsächlich nicht an einem externen USB3-Hub, den ich mir kürzlich zusätzlich gekauft hatte, weil mir vorn am PC die USB3-Schnittstellen ausgehen. Das ältere Laufwerk kann am Hub betrieben werden. Die Idee war eigentlich gewesen, alle drei an den Hub zu hängen.
Woran liegt das? Also, was unterscheidet die beiden neueren von dem älteren? Einsparungen in der Elektronik? Und: Läßt sich das im Nachhinein „enhancen“, also könnte man die Laufwerke so umbauen, daß sie auch am Hub funktionieren?
Ignore the dust. This is the unit bearing the front USB3 ports of my PC case, a CoolerMaster N400. When opening this, I thought I would find a circuit board that I can easily trace and solder. Nope. It's just a piece of black plastic held together by dark forces. The lower port is broken. It works if I bend it upwards with considerable force, but it doesn't stay like that. I assume it's a broken solder joint and there's still a PCB inside. I wonder if the plastic would be able to withstand 150°C or so for 10 minutes. Maybe I could try reflowing it with the case on? #Repair#USB#DIY#Electronics#Computer#PC
Just installed #archlinux on my computer. Stupidly forgot to install #brltty and #espeakup before rebooting though so now have no speech. Would any sighted person out there be willing to help me login, connect to the internet, and install what I need over a #videocall? It shouldn't take too long, and I don't want to boot from the #usb again. #BeMyEyes is great, but I'd prefer help from someone who knows #linux. #blind#tech#technology#arch
You can never have too many USB-C ports, right? It's rubbish having a cheap laptop with only a single USB-C port. So, the good folks at Mokin have sent me a gadget which turns your single and lonely USB-C port into FIVE USB-C ports. Along the side you get 4 USB-C 3.1 port…
The good folks at Kaiweets have sent me their KTI-W01 Thermal Camera to review. You can use coupon code TEB15 for an exclusive 15% discount. Let's get this unboxed and working! Demo Photos The photos are stored as JPGs which can be read by any normal graphics program. Th…
I'm thinking about setting up a #udev rule that triggers some actions when a given device is removed. For that I'd like a minimal #usb device/token, think "only vendorid and productid", no actual functionality (which could fail and cause issues, etc.). Does anyone have a source for something like that? It's obviously ridiculously niche and not at all cost-effective to manufacture...
So, I was diagnosing a weird webcam issue for days and days. I've been using a Oculus Rift Sensor for head tracking for a while now and it suddenly stopped working. It's basically just a USB webcam. I tried several different kernel versions and even some from last year with no luck. I dug into the code of the uvcvideo driver, I tried setting quirks, nothing helped. I was obsessed with this issue.
Long story short: I disconnected my computer's front panel and everything worked.
The front panel must be faulty which must've tripped the USB controller in such a particular way that it kept working fine but was unable to recognise newly plugged devices and sent garbage to the kernel.
What the actual heck. USB is so weird. Do you have any USB stories like this?
Recap - I want to build an NFC reader expansion card for the FrameWork laptop. So I've bought a couple of components. This is the ACR1251T-E2 - it's a USB pen-drive sized NFC reader with a side-out USB-A plug. Costs about £40. There's a recessed green LED which flashes to let you know that it …
There's a recessed green LED which flashes to let you know that it is working. It doesn't beep or vibrate when it detects an NFC token. It is a little bit tricky finding the antenna as the internal circuitry slides down the plastic housing - as can be seen in these internal photos
There's a lanyard hole at the end, and a plastic clip so you can attach it to things.
Linux support is flawless. Running lsusb shows 072f:224f Advanced Card Systems, Ltd ACR1251 CL Reader PICC
And running pcsc_scan gives the same information: 0: ACS ACR1251 CL Reader [ACR1251 CL Reader PICC] 00 00
It's a solid enough unit. The plastic housing is sturdy and not easily damaged. You can't get in to the shell without a spludger.
The only downsides are that it uses USB-A - we're in the C era now! - and that the sliding mechanism obscures the antenna position. But, if you want to carry a discreet USB stick with you for NFC purposes, there's nothing better.
Let’s hope this #security-conscious choice in the Kia EV9 is the start of a trend. They didn’t have to give us this. In a real button, no less — you can connect or disconnect the data from your phone while #USB-charging it in your car. From MKBHD https://youtu.be/CRhjL9X2yKA
Both my wife and I have a #LEGO set with a light kit hooked up to our #gaming#PC's. So that when our PC's are on the light kit in the hooked up set is on. Due to the motherboard during #WoL the #USB ports those sets are hooked into are always supplying power. As a result they would always be turned on. So used #nodered with information from a #ESP presence sensor, and information from the #unifi#switch the PC's are connected to to determine if they are on. When they are off the NIC speed is