I made a modification to one of my Sonoff's See the pictures above.
This allows me to have a momentary push button wired to the Sonoff to turn it off/on or pair a remote control to it. The push button can be some distance away from the Sonoff
The reason I did this is because I intend to install the sonoff in the roof space of my house connected to a light circuit. I will then run the low voltage wire to my push button light switch on the wall of the room.
I can then activate the lights by either the wall switch, the 433mHz remote, or my phone.
It would be good if this was a standard feature of the Sonoff. It only requires installation of a terminal block connector socket and some openings made in the casing.
There is an easier way to do this.
Basically, you can use the same light switch, without any modification to the Sonoff device.
Just change the default mode of the device when it is being powered up.
Go to eWeLink App, Select the device > Setting > Device Power On State = ON.
To turn the light on if it has been switched off by the remote app, turn the existing Switch OFF and ON again, the Light will be turned back On.
Sonoff Device will be re-connected to WIFI after few seconds, after it is being switched on.
If I solder a push button switch to the momentary pause button to trigger the relay output can I have trouble if someone holds more than 7 seconds it tight? as an example reset sonoff?
Yes you can reset using this method.
I have about 7 sonoff switches connected throughout my home with wired push buttons(bell type switches)
i use alexa for turning on and off light,fan,ac,geyser etc
In case my network connection fails, i can still use my equipments using the wired buttons.
this is by far the cheapest smart home soultion if you buy these in bulk.
It worked well. I intend to do it to other lights in the house.
The only one part is needed, a 2 pin terminal block which you can off ebay or your local electronics shop.
Because of the limited space I could only glue it to the board. The wifi antenna is on the other side so so holes could not be drilled in the board. The terminal is wired to the existing push button board connections.
The hardest part was cutting out the holes neatly in the casing with a scalpel.
The push button switch just needs to be a low voltage momentary type (cannot be latching). I haven't found one to match my normal wall switches yet but have used one like in the picture.If you find one that matches normal house switches please let me know.
Awesome! The Clipsal Impress is white and come in 1-gang up to 6-gang i think. Are you in Australia?
I think these would work better actually. Also clip into the wall plates.
I directly soldered two wires to the Sonoff's switch and fed them outside the case where then I've just put a terminal(or whatever is called?) on the ends to connect wires coming from the switch.
Easier and faster :)
I completely agree. This is a cheap change to be implemented bringing a huge benefit.
Exposing this terminals, we would be able to replace legacy switches with momentary switches connected to them, so we keep the pre existent local control (wired), using also the existent infra structure (boxes, wires..).
Very useful when you want automation but you have also old fashion people at home.
Nice idea. Could you please advise what kind of wall switch I can use?
I know it must be momentary one, but how to find one.
Just thinking about this one, but it's not low voltage
Hey Arik, you happen to be from Singapore? According to our population, the chances are quite slim hahahaha... but how thank you for the helpful tip! Just to clarify, this is using the Sonoff Basic? So you install a Sonoff Basic behind every wall switch?