6 ms·

I've been toying with a variant of this project for my Honeywell home air filters. I have one in all my "big" rooms, and I like to keep them running at a low sp

by IvyMike 10mo ago

I've been toying with a variant of this project for my Honeywell home air filters. I have one in all my "big" rooms, and I like to keep them running at a low speed most of the day. But I also have time-of-day energy pricing, and it would be nice to automatically turn off (or at least slow) my air filters during the 5pm-8pm window. This project inspires me to at least look into the feasibility of adding that functionality myself.

NegativeLatency 10mo ago
Depending on your air filter you might be able to just use a smart plug, I went down a similar route this summer before realizing that mine would remember their power state and settings when powered off. So now I just have them plugged into a few smart plugs with automations in homeassistant
- reaperducer 10mo ago
  Why not just use a dumb timer plug from a hardware store? Ten bucks, and completely hacker-proof: https://www.acehardware.com/departments/lighting-and-electrical/timers-and-lighting-controls/timers/3001316 https://www.acehardware.com/departments/lighting-and-electri... $16 if you need a remote control: https://www.acehardware.com/departments/lighting-and-electrical/timers-and-lighting-controls/timers/3001320 https://www.acehardware.com/departments/lighting-and-electri... Or $17 if you want to get all digital and fancy: https://www.acehardware.com/p/3001323 https://www.acehardware.com/p/3001323
  - NegativeLatency 10mo ago
    Sure those work, I've tried them before, but I find them more fiddly and less fun to program than homeassistant. Also I can easily turn them on or off from my phone which is nice if I'm feeling lazy.
- XorNot 10mo ago
  This is what I do with my dehumidifiers. It's been working so well I was actually surprised one night when the dehumidifier in the bedroom turned itself on from the automation (which I have set to do after dark if humidity is higher then 70%). It had been within tolerance for ages and I just hadn't had to even think about it.
- IvyMike 10mo ago
  I would need a device with a physical switch rather than a touch control. Sadly many devices, mine included, have "power was cycled = device is off" logic.
  - sksksk 10mo ago
    You might have luck with these... https://uk.switch-bot.com/products/switchbot-bot https://uk.switch-bot.com/products/switchbot-bot
  - NegativeLatency 10mo ago
    curiously mine are digital momentary switches, they just happen to store their state in some kind of nonvolatile storage
  - deleted 10mo ago
    [deleted]
alright2565 10mo ago
https://github.com/flaviut/Honeywell-HPAx00-ESPHome https://github.com/flaviut/Honeywell-HPAx00-ESPHome
- IvyMike 10mo ago
  Holy shit, perfect!
tylergetsay 10mo ago
You should, it is very DIYable! I did it and reverse engineered it myself a while back. You dont need to make a custom circuit board if you are fine with losing the touch controls
randyrand 10mo ago
Why not this? 24-hour programmable timer https://www.amazon.com/dp/B0D7ZS6PGK https://www.amazon.com/dp/B0D7ZS6PGK

by IvyMike 10mo ago

NegativeLatency 10mo ago

Depending on your air filter you might be able to just use a smart plug, I went down a similar route this summer before realizing that mine would remember their power state and settings when powered off. So now I just have them plugged into a few smart plugs with automations in homeassistant

reaperducer 10mo ago
Why not just use a dumb timer plug from a hardware store? Ten bucks, and completely hacker-proof: https://www.acehardware.com/departments/lighting-and-electrical/timers-and-lighting-controls/timers/3001316 https://www.acehardware.com/departments/lighting-and-electri... $16 if you need a remote control: https://www.acehardware.com/departments/lighting-and-electrical/timers-and-lighting-controls/timers/3001320 https://www.acehardware.com/departments/lighting-and-electri... Or $17 if you want to get all digital and fancy: https://www.acehardware.com/p/3001323 https://www.acehardware.com/p/3001323
- NegativeLatency 10mo ago
  Sure those work, I've tried them before, but I find them more fiddly and less fun to program than homeassistant. Also I can easily turn them on or off from my phone which is nice if I'm feeling lazy.
XorNot 10mo ago
This is what I do with my dehumidifiers. It's been working so well I was actually surprised one night when the dehumidifier in the bedroom turned itself on from the automation (which I have set to do after dark if humidity is higher then 70%). It had been within tolerance for ages and I just hadn't had to even think about it.
IvyMike 10mo ago
I would need a device with a physical switch rather than a touch control. Sadly many devices, mine included, have "power was cycled = device is off" logic.
- sksksk 10mo ago
  You might have luck with these... https://uk.switch-bot.com/products/switchbot-bot https://uk.switch-bot.com/products/switchbot-bot
- NegativeLatency 10mo ago
  curiously mine are digital momentary switches, they just happen to store their state in some kind of nonvolatile storage
- deleted 10mo ago
  [deleted]

alright2565 10mo ago

https://github.com/flaviut/Honeywell-HPAx00-ESPHome https://github.com/flaviut/Honeywell-HPAx00-ESPHome

IvyMike 10mo ago
Holy shit, perfect!

tylergetsay 10mo ago

You should, it is very DIYable! I did it and reverse engineered it myself a while back. You dont need to make a custom circuit board if you are fine with losing the touch controls

randyrand 10mo ago

Why not this? 24-hour programmable timer https://www.amazon.com/dp/B0D7ZS6PGK https://www.amazon.com/dp/B0D7ZS6PGK