this post was submitted on 30 Jun 2025
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submitted 1 day ago* (last edited 1 day ago) by [email protected] to c/[email protected]
 

xkcd #3109: Dehumidifier

Title text:

It's important for devices to have internet connectivity so the manufacturer can patch remote exploits.

Transcript:

[A store salesman, Hairy, is showing Cueball a dehumidifier, with a "SALE" label on it. Several other unidentified devices, possibly other dehumidifier models, are shown in the store as well.]

Salesman: This dehumidifier model features built-in WiFi for remote updates.
Cueball: Great! That will be really useful if they discover a new kind of water.

Source: https://xkcd.com/3109/

explainxkcd for #3109

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[–] [email protected] 1 points 30 seconds ago

There must be some way to remove the "smart" controller from a device and replace it with a dumb one, like an arduino or something. I want to lobotomize these devices.

[–] [email protected] 3 points 2 hours ago (2 children)

I bought a washer that has wifi connectivity. It want to texts me or something when the cycle is finished and doesn't even seem to have a 'play a loud beep when done' option. How does this make any sense at all?

[–] [email protected] 2 points 33 minutes ago (1 children)

My brother in christ, you bought the machine

[–] [email protected] 2 points 17 minutes ago

I think we aren't yet used to machines fucking us over in unexpected ways for that sweet sweet spying/ad revenue.

Like, who would have asked 10 years ago "will my TV show extra ads?". Now it's hard to get one that doesn't have them. And dishwashers are next

[–] [email protected] 1 points 54 minutes ago

How does this make any sense at all?

I bought a washer that has wifi connectivity.

[–] [email protected] 1 points 5 hours ago

I mean there's heavy water

[–] [email protected] 3 points 11 hours ago (1 children)

I'm still trying to figure out my network settings so that I can have my IoT one one network while still being able to access my home assistant from the other network.

Unfortunately, my ISP is also my cable company, and I have to use their modem/router combo else the cable boxes won't accept the cable signal. I'm using my own wireless access point (which also doubles as a switch for the handful of Ethernet devices I have), and it can split off a separate SSID, but that's not really doing much.

[–] [email protected] 2 points 7 hours ago (1 children)

I have a separate IoT network. It's basically just a guest wifi for IoT. Anything coming in on that network gets a VLAN tag and only previous & established connections can get out. Honestly, it's kinda a pain in the ass with homeassistant because I keep HA on the other network so I have to manually find devices. It might be easier to just block it at the ip level or blacklist outgoing ip ranges to Tuya or whatever.

[–] [email protected] 2 points 4 hours ago

I have HA on a separate VLAN from IoT devices and have set up mDNS reflection so it can find them.

[–] [email protected] 19 points 1 day ago (1 children)
[–] [email protected] 6 points 19 hours ago

You joke but my dehumidifier has an automatic comfort mode of some sort.

I guarantee that next run will have that button with screen print AI something something above it instead.

[–] [email protected] 11 points 1 day ago (1 children)

If I can turn it on remotely, that's a good feature. I have solar, I want it to work when the sun is out and I'm producing excess energy.
Yes, I know I can use other peripherals to do this (sometimes) but its always nicer if its just built in so I don't need to waste carbon on other things.

The only thing I want when manufacturers add wifi to these things is to appeal to open source principles like allowing us to connect to it and communicate with it openly and not tie it down to some cloud service they run.

[–] [email protected] 5 points 1 day ago (1 children)

Why not plug a dumb dehumidifier into a Home Assistant controlled outlet?

[–] [email protected] 7 points 1 day ago

Yes, this is generally what can be done. Disadvantages include:

  • having to buy yet another device
  • knowing which dehumidifier will start working as soon as it gets electricity. The ones sold in my country are all no name brands with little information if they will work or not and few spec sheets.
[–] [email protected] 23 points 1 day ago (2 children)

Do they have a model with AI?

[–] [email protected] 10 points 1 day ago

Shh shh shh, don't give them ideas.

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[–] [email protected] 48 points 1 day ago (8 children)

I got new appliances a couple weeks ago and they're all "smart". Turns out a smart microwave just sends you a phone notification when it's done. By default.

As someone with multiple people living in the house, I can confidently say this is the dumbest "smart" feature ever. Promptly disabled.

[–] [email protected] 1 points 6 hours ago* (last edited 6 hours ago)

As someone who hates appliances beeping, I love push notifications

I'm so tired at things beeping at me

[–] [email protected] 2 points 7 hours ago

How long are people microwaving things to the point where that is useful??!

[–] [email protected] 20 points 1 day ago (10 children)

Any appliance with IoT is a value-subtract.

They do it so in the future they can monetize you in perpetuity in some way

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[–] [email protected] 9 points 1 day ago (3 children)

My appliances are ‘smart’ but I didn’t bother actually connecting them to my WiFi. I guess preheating the oven remotely could be cool(?) but nah.

The stuff I do use…

The microwave above the stove can talk via Bluetooth(no app or phone involvement at all). Turn on a burner and you can set it to turn on the light and/or vent fan. Another nicety is being able to set the clock on the stove with the full keypad and it just syncs to the microwave.

[–] [email protected] 2 points 7 hours ago

Remote preheating sounds like a terrible idea. What if you mistakenly left something in there?

[–] [email protected] 8 points 1 day ago (1 children)

The only smart thing I'd want an oven to do would be to turn itself off. That's it, really. Did I leave the oven on after I left the house? Easy fix. Otherwise everything else is pretty much useless.

[–] [email protected] 2 points 18 hours ago

I don't know, I wouldn't mind also being able to tell it to start to preheat while I'm on my way home. Would save a chunk of time if I could literally walk in the door and throw the food in the oven without the extra wait for it to preheat which is usually long enough to be annoying but not long enough to do anything else.

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[–] [email protected] 44 points 1 day ago (10 children)

I’ve looked into many WiFi dehumidifier’s and the one thing I wanted from it was to notify my phone if it’s full. None of them do that. All they do is let you change speed and stuff. Nothing that is important to me. I just want to know if I need to go to the basement and empty it or not.

[–] [email protected] 22 points 1 day ago (1 children)

I put mine on a zigbee plug into my home assistant (docker on nas), and created an automation to notify me when the power consumption drops below 1 W or so (lower than when it's only running the fan when the hunidity is near setpoint). All local, works so far.

[–] [email protected] 1 points 18 hours ago (1 children)

That's really interesting, i was looking into Zigbee plug documentation, could not find if i can program them myself. Do i need to use their propritery app for whatever it does ?

How did you integrate the plug into existing home automation system ?

[–] [email protected] 3 points 18 hours ago* (last edited 18 hours ago)

I'm using "home assistant" and add them there via the zigbee integration.

Edit: I have the Nous zigbee sockets, never used any other app than home assistant to do anything with them. They also have a small button with a light so you can still switch them on/off without any app. Via home assistant you can read out various info like power, current etc

[–] [email protected] 27 points 1 day ago

Right? Like half of what I want from these things is when is the battery low? When is the outbox full? When is the feeder empty? And metrics to verify the device is generally operating safely.

Controlling the device? We've known how to do that for 50+ years. Help me maintain the device.

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[–] [email protected] 90 points 1 day ago (33 children)

welll........ devils advocate.. i could see the wifi being used so the device can be incorporated into the home automation system [climate control]. its not about dehumidifying, its solely about engaging the dehumidifying as needed.

[–] [email protected] 137 points 1 day ago (14 children)

Yeah, or the manufacturer bricks the device bcz they want to sell you a new one.

[–] [email protected] 31 points 1 day ago (10 children)

That's why projects like this are great: https://github.com/Hypfer/esp8266-midea-dehumidifier

My Midea Cube dehumidifier can never be bricked and will never send data outside of my home. It talks to Home Assistant via MQTT and nothing else.

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[–] [email protected] 50 points 1 day ago (27 children)

Dehumidifiers already do that. They're equipped with hygrometers that kick the machine on or off depending on the relative humidity. It's old tech and it's pretty reliable, wifi isn't really necessary for it.

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[–] [email protected] 58 points 1 day ago (11 children)

Meanwhile here I am installing ESP32C3's into everything in my house to automate everything.

I can turn on my floor heat, hallway light, or even open a vent from an app on my phone. And bonus, no shady manufacturers to spy on me. Just China.

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