Share
So I wanted to replace one of the switches in the hall with a smart switch. as shown above the switch can currently be activated from either end of the hall. if I just replace one side will it still work? do I need to change anything else or swap both ends?
Hi @shunter6669
The short answer is no that wifi unit as is a single pole switch.
Where as the standard light switches use a single pole double throw at each end of a pair of switched active lines allowing either switch to complete a light circuit.
However If a relay Double pole double throw 240v ac activated and switched Relay was hypothetically used to replace the wall switch the Wifi light module could activate the relay as if it was a standard light switch.
This hypothetically will however give electricians a pink fit Even though it is electrically sound as the use of relays in households I have never seen and before and they will have to install this and sign off on it good luck on that one.
Seek Electrician to Discuss with and or install.
Plan B
@shunter6669 Smart Switch going directly to a light bypassing all wall switches these days it should be possible to put in a sensor at each end of the lighting circiut eg a corridor and program the light to go on and off as you wish when the detector (smart PIR) Or (Smart camera are common these days) ) outputs a trigger to Google etc. which will in turn on the light. As well as your phone or remote delta device can turn on the light. Also Google Nest speaker can listen to your verbal commands
Hi @shunter6669,
It's great to see @Jewelleryrescue has provided some information.
I'd agree that the second switch will cause issues. There might be a fancy way around this, so let me mention one of our smart home experts, @CSParnell, to see if he has any thoughts.
It's worth mentioning that since this is a 240V installation, it's essential to employ the services of a qualified electrician for any work needing completion.
Mitchell
Thank you very much for the information so far. I have not attempted to install yet and am waiting for more info. Hopefully @CSParnell can come up with something as my electrician was not happy when i suggested a relay 
Is there somewhere to suggest new products to deta? would like to see a pack maybe that that contains something for this scenario or similar. Would also like to see 2 switches with a fan controller and 3 switches with fan controller. Or maybe a way to special order switches in a certain combo.
Hello @shunter6669
Would changing both ends with a smart switch solve the problem? You would probably need to identify the switches if you were programming a sequence behaviour that you're after. If you wish to suggest products to DETA here is a link to their contact page: Contact Us.
If you need further assistance, please let us know.
Eric
Thats interesting @radiotek
I never thought beyond Dial up modems for DTFM. I still remember servicing modems the size of brief cases where the phone handset sat in a foam cradle. On a good day we used to get 96 baud on a clear line.
Well done on your light switching controller. 
implementing DTFM
I use to machine code processors direct to 16 bit processors for fun but never evolved to the more modern PIC Microcontrollers avalable due to the lack of time and direct need. The more modern processor has many functions built in than older ones which had non. I would have to teach to multiply, to a machine that incures adding up a number Y by X times in a loop and dealing with carry over bits registers.
So much is taken for granted these days. I am not sure machines could ever self replicate. They would have to build a whole civilization to make components and mines to dig then process ore etc. I am not sure my toaster is up for that yet. lol
Nice to meet you.
Update:
Looks like there may be an offering. special order is my guess
Thanks, I think the extra no load switch will likely be the solution I'll end up using.
