Live data from Hacker News

Turning a dumb AC unit smart (without losing my security deposit)

prilik.com

51–60 of 176 posts

Re: Turning a dumb AC unit smart (without losing my security deposit)

#51
post #36

Earlier quoted context omitted.

Portable ACs are generally less efficient than regular window ACs and PTAC units since the compressor is inside the room.

Yes, except for dual hose inverter ones.

There are also portable split systems like Midea Portasplit.

Re: Turning a dumb AC unit smart (without losing my security deposit)

#52
> Imprecisely yeet the stepper motor all the way left/right, toggling the target temp between “really really hot” or “really really cold”

> Option 2 certainly is the “jankier” of the two options, given that it relies on a second-order property (target temp) to power the unit on/off… but hey - whatever’s easier, right?

Isn't this basically how a thermostat works? I.e. there is a component that is binary on/off, and a thermometer is used to decide to switch on or off.

Re: Turning a dumb AC unit smart (without losing my security deposit)

#54
post #41

Earlier quoted context omitted.

If you are rich you have single-use rooms. Hell, even I have a sleeping room, a cat room and a hacking room. It's not that expensive. The cat room doubles as a mini-cinema. Ambient light is dealt with having nice thick blackout drapes. This is not some rocket science, it was done for like a hundred years. edit: actually in my former apartment I just bought a roll-down projector screen that completely covered the wind…

Lots of people (even exceptionally wealthy ones) don't want to always have to go to the theater room to go watch something. Lots of people like having the TV on in the same way one might think about having a radio on, its not necessarily a thing they're exclusively focused on. Take a look at this house: https://www.zillow.com/homedetails/5619-Walnut-Hill-Ln-Dalla... ? Sure, it has a theater room with probably an incr…

A relative likes to have TV on as ambient background. Drives me a bit crazy but, hey, I'm a guest. Also used to drive me nuts when I was on group trips with a roommate and their first reaction on entering a room was to turn the TV on.

Re: Turning a dumb AC unit smart (without losing my security deposit)

#55
post #19
post #17

Earlier quoted context omitted.

It always kind of blows my mind that I keep seeing "smart TVs" which have a bunch of integration options for high-end AV installations (rich people's houses, etc.) but no API that you can integrate with to just handle toggling channels/inputs/power states/volumes. (I did get my last Sony Bravia integrated with Homekit so that I could control inputs, volume, etc. via the Home app, but that's not really what I'm lookin…

It always blows my mind why those rich people even bother with TVs. I'm not rich by any measure, but still I can afford a projector, a screen and a couple KRK monitors.

Truly rich people do not have TVs.

Or if they do own a ultra high end TV like a C Seed N1 they hide them away inconspicuously.

https://www.cseed.com/en/indoor-tv/c-seed-n1-tv.html

It is like eating cheap and nasty junk. If you are rich you avoid it or eat it discreetly...Or your acquaintances laugh at you.

Re: Turning a dumb AC unit smart (without losing my security deposit)

#57

Assuming running a dual hose inverter portable AC isn't against the lease agreement it would probably pay for itself based on the power usage. Pretty neat hack regardless.

Why? A dual-hose portable is more efficient than a single-hose, but a PTAC should (in theory) be more efficient (and possibly quieter) on account of having the heat-emitting side of the cooling loop outside of the living space, which is closer to the ideal split system - though I suppose that advantage could be undermined by the unit's age and condition.

Re: Turning a dumb AC unit smart (without losing my security deposit)

#58

The "couple a stepper motor to a shaft" API is so much better than any "smart" appliance API. Speaking more seriously, I wish classes of appliances would expose some simple analog and digital interface pins in a standardized configuration to let users choose whatever automation or monitoring hardware they want. HVAC equipment does this with standardized thermostat terminals. I'd love to see that on other types of app…

Many smart meters have an LED that blinks every time you consume a watt-hour.

Re: Turning a dumb AC unit smart (without losing my security deposit)

#60
post #42

Earlier quoted context omitted.

Exactly. I don't want a "smart" washer / dryer / fridge / toaster. I want a standard interface I can build my own system around, or use someone else's that they've already built.

I wish lock-in was as taboo as medieval Christian attitudes towards usury.

But weren't medieval Christian attitudes towards usury a good thing?
Post reply on HN