Comment by christophilus
1 day ago
My pet peeve is remote controlled fans. I want a physical cord or switch. The remotes are so flaky and annoying.
1 day ago
My pet peeve is remote controlled fans. I want a physical cord or switch. The remotes are so flaky and annoying.
DC fans are infinitely superior to AC fans (noise, torque, longevity, etc.), which is unfortunately why this became a thing.
There's no clean mechanism to control a fan's speed in-band on a normal AC wall switch.
> There's no clean mechanism to control a fan's speed in-band on a normal AC wall switch.
There absolutely is. If you have a fan with a light controlled by separate wall switches, you have two hots running to the fixture. Take one, and leave it unswitched always on to the fixture, and use the second switch (or fan controller) and use it as an input to the controller on the fan. Done.
Unfortunately, I haven't seen this implemented anywhere.
This message brought to you by the hours I've spent annoyed by exactly this misfeature in our new bedroom fan. Fanimation does sell a wall mounted remote that can be wired inline with a switch, so at least there's a single point for master power and a remote you can't lose. Unfortunately, there's a noticeable delay between flipping the switch and the light turning on.
> There's no clean mechanism to control a fan's speed in-band on a normal AC wall switch.
I went through this pain when I bought ceiling fans a few years ago. Various manufacturers offer switches or remotes you can attach to the wall but that take batteries - the options for actual wired switches are slim. I ended up with a few hardwired Big Ass Fans wall controllers that work pretty well - but their current-gen wall controls are hardwired bluetooth remotes, which is subpar for something that's connected via wire. (And they cost $210/each, which is pretty egregious for a wall switch.)
> DC fans are infinitely superior to AC fans (noise, torque, longevity, etc.), which is unfortunately why this became a thing.
What?
Every house I've ever lived in over my many decades of life has had ceiling fans. I've never known one to fail, never known one to be noisy, and never known one to have inadequate power. I've personally installed a couple and know those got wired straight into AC mains power... so unless they have a converter built in, I figure that every ceiling fan I've ever lived with has been AC powered.
Unless you've been working with absolute bottom of the barrel fans (and those fans are worse than I could possibly imagine), this smells like industry propaganda to me.
> There's no clean mechanism to control a fan's speed in-band on a normal AC wall switch.
OP is asking for a normal pull chain or switch... one that's attached to the fan housing, not some doodad that's embedded in the wall and needs to be specially wired into the fan electrics. I've been to the houses of a few friends that have had fans controlled with a handheld wireless controller, and I can confirm that that was -overall- way worse than hauling my ass up to pull a damn chain.
My MinkaAirs use 303MHz remotes. No pull chains. This frustrated me so much, last night i got an ESP32-S3 + CC1101 and reverse engineered the signal to the fans to be also control it from Home Assistant. Now, if i lose or break the controller, i can still switch the fans & built-in LED on & off another way. not perfect, but it is in my control.
How did you reverse engineer the signal?
I’ve looked at a product called Bond that seems to facilitate it. But haven’t yet tried it.
Probably not anything more complicated than running some kind of signal receiver while clicking each button on the remote and then capturing/replaying it. I highly doubt there's much if any security around the fan remote signals lol.
Probably AI, it is really good at it. Stuff that normally takes days to reverse is taking minutes now.
I want more POE devices.
It might be that POE power supplies get hot - I've noticed the POE hats for the raspberry pi need a fan
The POE hats for something like a pi convert the high voltage (~48v) down to 5V, so efficiency is going to be generally middling if you don’t spend a lot on the components. I imagine they’re running 80% efficiency or so, which would be an easy 3W of dissipation at peak or so.
Your fan doesn’t need Wi-Fi?
No, my fan is NOT part of the botnet, nor will it ever be.
Just make sure your fan is on the latest firmware!
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In two apartments, the remote affected the neighbor's fan and vice-versa. At first I wondered at the fan's erratic behavior, especially switching modes soon after I changed it. Then I guessed the problem and spoke to the neighbor.
I tried changing channels in the remote but that didn't seem to help much. With the second neighbor, the fans were in my living room and their bedroom. We agreed to control fans in shifts (I turned mine off at night).
It's hard to believe it's just a very unlikely coincidence. Maybe the channels are too few or narrow to be useful? How hard would it be to implement some psuedo-UID?
Sounds like the old Steven Wright joke about having a switch in his apartment that didn't do anything, he kept turning it on and off and nothing happened. Then a guy in France called him and said, "Cut it out."
> How hard would it be to implement some psuedo-UID?
Are you mad? That would cost low-single-digit pennies per unit!!! </pennypinching_bigco_derision>
This annoys me too. My Casablanca fans have a wall switch which is hard wired to power only for on/off, but the fan and light controls are sent via a radio frequency signal. The most frustrating part of this, is that the RF transmitter inside the wall switch is battery operated. I have to unscrew the wall switch a couple times a year to get to the batteries.
As someone that designs battery powered RF devices. It's shocking an disheartening seeing stuff like that.
Things drawing an average of a few hundred microamps while the fan is running. Probably because it's blasting a keep alive packet once a second or so. It does that because a transceiver costs an extra 50 cents.