agressivelyPassive

I'm trying to use an RPi Pico W as a temp/humidity sensor using a DHT20.

It kind of works - at least sometimes, but I keep "losing" sensors more or less randomly.

I connected everything up like here (using MicroPython): https://github.com/flrrth/pico-dht20 There are currently 4 sensor-boards, 3 soldered, one on a breadboard.

The error modes I could observe are:

1. DHT20 fails to init - sometimes after the first read, sometimes after days. Resetting the machine works sometimes, if not, power cycling usually does the trick

2. The board just "stops" after about 5min - the serial console just says "device disconnected". Power cycling is the only option.

My measurement work by having a timer fire every minute, connect to wifi, read from the sensor, and then send an mqtt message (either the values or an error message) and shutdown wifi again.

My current ideas why it could fail (but I'm not an electronics guy at all):

• There is some kind of "rogue current" messing with some IC.
• Some component is broken
• Maybe the power draw is too low or issuing sleep() messes with the USB-power connection somehow?

For me the problem is, I don't really know where to look for errors. The software works in principle, the soldering seems to be good enough to sometimes work for days, and looking too deep into the whole electronics side is beyond my capabilities.

I have a public SMB share mainly as a media dump. Everyone can read and write, without any auth - as intended. However, if I copy files via SSH (as a regular user, not the samba user), these files are of course owned by that user and thus not writable for the samba user - so I can't touch these files via SMB.

My config looks like this

[public]
  path = /path/to/samba/public
  guest ok = yes
  writeable = yes
  browseable = yes
  create mask = 0664
  directory mask = 0775
  force user = sambapub
  force group = users

I can fix the permissions by simply chown/chmod all files, but that's not really a solution.

As the title says, FF seems to selectively forget cookies and thus requires me to constantly re-login.

I've had the exact same issue on two separate machines both running Ubuntu. My best guess is, that snap is at fault here, but I have no idea, why.

To reproduce the issue, I just have to perform the arcane ritual of "closing the app" and whoosh, cookies are gone. Plugins and settings persist, no "delete on close" option whatsoever is active. Vanilla Ubuntu shows exactly this behavior.

I'm planning on giving an older machine a small upgrade with an SSD, but since that machine does not have an m.2 port, I was thinking about buying the cheapest PCIe adapter I could find. Besides the obvious stuff like ports, PCIe gen and lane count, is there anything I should look out for? Specifically regarding Linux?

I got my hands on an old e-ink price tag and want to repurpose this display.

Unfortunately, I can't really figure out, what this type of connector/bus is called. To me it looks like a standard issue ribbon cable.

There are some "universal" e-paper drivers (for example this one: https://www.ebay.de/itm/353141399922), but I have absolutely no idea, how to find out, if that's the right connector.

The device is made by Imagotag, if that helps.

Edit: I added a picture of the panel: https://feddit.de/pictrs/image/42ee4f60-231a-4c42-9a66-6c369134c49c.jpeg

None of the "markings" returned any results and the QR code couldn't be decoded by my phone.

I'm often in longer telephone conferences and like to play relatively uncomplicated, mindless games like 2048 or threes. Both of these are getting pretty boring these days, so I'm looking for new games.

Ich hatte mir vor Jahren mal ein gutes Polster von Audible-Guthaben angehäuft, was jetzt langsam leer wird und da ich Amazon ungern weiter unterstützen möchte, suche ich einen neuen Anbieter.

Thalia scheint ein vergleichbares Angebot zu haben, aber zumindest bei oberflächlicher Suche war das Angebot eher mau (Foundation von Asimov existiert zB gar nicht).

Bookbeat fand ich eigentlich auch interessant (10€ für 25h Material finde ich fair), aber dass die Minuten am Ende des Monats verfallen, finde ich frech.

I have an HP g3 mini and a Dell Optiplex flying around, both similarly specced. The HP has an i5 6500t and 16gb DDR4 RAM, the Dell has 8gb DDR3l, so nothing too different.

However, the Dell draws around 15W while idle, the HP one 5W.

The only difference I could think of (and that is in my power to change) is the PSU. The Dell has one of those SFF PSU for up to 180W while the HP has an external 65W power brick with a barrel jack.

So my question is: Does anyone have experience with one of those Pico PSUs? I guess they should be more efficient? I'm not planning to put anything power hungry into the optiplex.

Ich bin eigentlich kein großer Spieler, deswegen benutze ich immer noch einen fast 10 Jahren alten Rechner, der aber ansonsten eigentlich noch ganz gut läuft.

Momentan werkelt hier ein i5 4690 mit einer GT 1030 (2GB) die ich mal günstig geschossen habe.

Das ist natürlich nicht gerade ein Powerhouse, aber für Fallout 4 reicht es gerade so okay-ish. Ein bisschen mehr Wumms hätte ich aber schon gerne, deswegen wäre die Frage an euch: Was macht da noch Sinn? Höchstwahrscheinlich irgendwas gebrauchtes, eine rechts unten Karte aus der Generation damals würde ich aber wegen Strom und so eher ungern nehmen.

Ich hätte an eine GTX 1660 gedacht, die scheint relativ gut verfügbar zu sein, aber ob das die kosteneffektivste Variante ist, weiß ich nicht.

I'm currently struggling with upgrading some Postgres DBs on my home-k3s and I'm seriously considering throwing it all away since it's such a hassle.

So, how do you handle DBs? K8s? Just a regular daemon?

I have a cheap Fujitsu Futro S920 running a bunch of services here, but I noticed, that for some tasks its rather weak (and old) CPU simply can't keep up. The lack of SATA is another weak point.

Is there any machine out there that can compete with its 5W idle power draw and offers better performance for a reasonable price?

ITX boards seem to draw often double what the Futro needs and here in Germany power is rather expensive.

I have a single mqtt topic that contains all my humidity/temperature sensors. Each message is simply a json containing the sensor values, a timestamp and sensor ID.

HA can read the topic just fine, but seems to have problems parsing out the device names. I managed to split humidity and tempature into to sensors (by the magic of defining the sensor twice), but I can't really distinguish between the different devices.

Is there a way to dynamically parse the device IDs and create sensors based on that? If necessary, I could do a bit of magic in Telegraf, but I assume HA can do that itself?