Home Automation

79 readers

2 users here now

Home automation is the residential extension of building automation.

It is automation of the home, housework or household activity.

Home automation may include centralized control of lighting, HVAC (heating, ventilation and air conditioning), appliances, security locks of gates and doors and other systems, to provide improved convenience, comfort, energy efficiency and security.

Warning: Working with electricity can result in injury, property damage, or even death if it is not done properly. Please keep this in mind while assisting others. If you are not sure about what you are doing, hire a licensed professional.

Rules

No abusive behaviour. This is a forum for friendly discussion; personal attacks will not be tolerated and you will be banned without warning.
Referral/affiliate links are NOT ALLOWED!
NO POLITICS! There are plenty of other communities to discuss them; this is not one.
When posting project details must be included. Posting a video or image without detail will result in a removed post and may result in a ban.
Crowdfunding links are not allowed.
Reposts, low-effort content and karma farming may be removed at the discretion of the mods. Posters may be banned without warning.

founded 1 year ago

MODERATORS

[email protected]

Shelly 1 to control another shelly 1? (alien.top)

submitted 11 months ago by [email protected] to c/[email protected]

3 comments fedilink hide all child comments

Hello everyone,

I have a question about shelly 1, didn't use it so far. Can I connect one shelly device, and depending if that shelly is currently getting some power then turn on/off another shelly?

First shelly will be connected to device, and if that device shares power through to shelly, then second shelly should turn on another device.

Is that possible with that? or should I use something else?

top 3 comments

sorted by: hot top controversial new old

[–] [email protected] 1 points 11 months ago

So, first of all, this solution will be cleaner and easier if you could power the first Shelly all the time and wire the switch into the switch input. But if that's not possible, you can still make it work.

If you can wire the Shelly for permanent power, I think you can even make it work with the original Shelly firmware. It can call webhooks so the first Shelly can call the HTTP API of the second Shelly. I didn't try it out though.

Otherwise you'll have to flash Tasmota: Original Shelly series Shelly Plus series

Then you can configure the first Shelly to periodically (e.g. every 55 seconds) call Tasmota's HTTP API on the second Shelly and use PulseTime on the second Shelly to turn off after 1 minute.

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

Probably would be best to give a description of what you are actually trying to do instead of how you are thinking of doing it. There are always multiple ways to do something.

To answer your question, sure, with relays, etc you can accomplish what you wrote...just not sure that's what you really want.

[–] [email protected] 1 points 11 months ago

I will try to do it best I can (english not my first language)

I have an underfloor heating with heat pump. I have to cabinets for underfloor heating, from where the tubes go around, and all the thermostats for rooms are connected (one for each floor of the house).

The pump that pumps the water through tubes is currently not connected with those cabinets and I need to connect it somehow. Because if all the thermostats are turned off then the pump doesn't need to work.

In the cabinet where all the thermostats for the floor are connected I can know if all the thermostats are turned off (by turned off, I mean that the temperature is high enough and it doesn't need to heat currently) . So my idea was to connect one shelly to each of those cabinets, and if there is no thermostats that requires heating currently, then the shelly that is connected with the pump should turn the pump off.

Hope you could understand it :)

So, by my idea, I would have 3 shelly devices, and if one of the two in cabinets is getting signal, then the 3rd one should be powered on and pump should work.