Sonoffs don’t have an RF receiver on them. How would you get the RF signal into the Sonoff?
I’ve not used sonoff’s, from what you’ve said the sonoff have an individual ip address per unit ?
Do you get feedback on status ?
Do they have a local loop for local manual control? (the WAF consideration)
If you do have a loop you can cross wire them to the other faceplate for dual location manual control. Ie Can you fit 3 of them in each of your two back boxes? (you can loop the controls for both to the other box, so all six are controllable from both spots)
Can you get 6 actual switches in both locations ?
Or are you planning on extending you face plates.?
If the above are considered and provisioned, go for it.
You sound almost like you’ve made up your mind, if so, best of luck
This remote only has 5 buttons, is there one that covers 6 or are you going to couple 2 lights together.?
yes
yes
By “loop” i assume you mean a way to program them to be operated locally from a wall switch?
If so, then it depends on what firmware you flash and how that firmware is configured. I have used both Tasmota and now ESPHome and it is selectable/programmable on both.
(see what I did there? 
)
The rest will have to be answered by the OP.
Sorry finity, but you’ve answered the majority of my questions so …
((edit: finity answered this but to clarify to op) but just to be clear, by local loop, I meant is there a 2-way (see, I can reciprocate 
) i.e. So you can take it into an xor loop (the common of a 3-way to take a pair to the 2 ‘ways’ of another 3-way and bring the common back) so you can operate the sonoff ‘locally’ and from two locations. (note: US nomenclature)
(To the uninitiated ‘xor’ is ‘exclusive or’, a karnaugh map description (look it up))
… So… You’ll (this means you finity) have to do the rest of the defense to go z-wave rather than WiFi (you know more about the sonoff, and my knee-jerk goto place is z-wave, so I’m biased.
My class c is pretty crowded and I have very few HA controllable items on it. So would prefer to keep that clear.
I would really like to avoid tasmota, but would be interested in your recommendation about esphome reading material.
Cheers
I know what an XOR is. And I know what a 3-way switch is. But I’m not sure what you are saying there.
Are you trying to describe the very first picture that I posted above but with the input to the switch on the left coming from the 3.3v pin on the sonoff and instead of the output of the switch on the right going to a light it instead goes back to the switching input pin on the Sonoff?
but wouldn’t that just be switch circuit as I asked above (albeit a bit more complex in the middle)?
If so, then the answer is still yes.
And I have no idea what that means either.
I tend to be partial to using Z wave stuff too but the cost usually seems to steer me back to wifi. I have several Z Wave devices tho. And they work really well. But generally (but not always) so do the wifi devices.
Yeah, I know “you know” but I try to write forum stuff for my grandma.
First picture, yes ! But implemented so that all the real switching is done by the sonoff, so that it can accurately report status an act together with the manual switches (again you probably know, but I’ll act as your grandma in the next one I promise 
) and only the sonoff touches the lamp.
This is the way I use my z-wave stuff - 4 real switches to input to a single z-wave switch (extreme example)
Aren’t the esphome devices over WiFi ??? And they are run mqtt ??? And Reading material/resource ?
Erm! Which bit? I’ll explain all as I don’t know, which portion.
A class c is a small private network of 256 (well 255 devices, okay 254 as 0 is all devices) I have about 80 devices though most appear twice if they have both wired and wireless addresses (new house (to me) not complete with the cat6 wiring yet) the only HA components are 1) hass 2) LMS 3) Kodi 4) all my speaker sources (6 off) 5) my echo dots (5 off) 6) my google mini (1 off) 7) 3off tv’s 8) 1 off x-box, 9) 3 off phones, 10) 2 off tablets
Given lack of wired at the moment, WiFi is busier than I’d like
Other lan stuff : - 1 other TV, 5 pc’s, 5 pi’s, 1 bluray, 2 NAS’s, 1 router, 2 extenders, 2 managed hub (switches) 3 mini switches (sorry they are transparent) that’s all I can think of, but it’s busy.
yes
but to be clear, there are no “esphome devices”. There are only esp8266, esp8285 & esp32 (maybe others?) based devices that can be flashed with ESPHome firmware.
yes…and no…
ESPhome has the ability to run over MQTT but the firmware also has the ability to interface directly with HA using an “API mode”. As I understand it right now the API is only used to interface to HA but it could be expanded to more systems in the future.
API mode bypasses MQTT completely so it is a bit quicker to respond.
Ok, so a standard residential LAN with wifi setup…
Yep Class C is : - aaa.aaa.aaa.xxx where the xxx bit changes on your LAN also sometimes referred to as CIDR /24 as 24 bits of the network are a ‘given’ and 8 bits used for your addresses, the 24 bits become a mask so 255.255.255.0 . If an address doesn’t match the mask it goes to the gateway. Class B is aaa.aaa.xxx.xxx and /16 ditto reasoning. Just there so you can use NAT to reuse millions of IP addresses for each domestic network. Large corporates use subnets of Class B’s for the same reasons. There are also Class A’s (And D’s and E’s but I have no clear understanding of them) And yet we await the rollout of IPv6 
Edit : - You can also have /20 or /22 networks but you need to be seriously good at XORing big binary numbers to have a feel for that, that’s why we normally stick with 8 bit delineators (well at least I do 
)
Again only 10% of the above is aimed at you the rest is for anyone reading to have a fuller picture.
Thanks for the link
Am I reading the following wrong?
" RFR2 Wi-Fi Smart Switch with RF Receiver * Features a 433.92MHz RF receiver module"
The thught was to install the Sonoff’s at the fixtures, and bypass the switches.
Not necessarily, just sourcing viable options.
Ideally, it would be a mix of remotes / wall switches.
Fixture 1-5 - Two Locations - 5 button remote.
Fixture 6 - One Location - 1 button remote / wall switch.
Nope, I forgot about that one. My bad.
I’m not sure how to set them up using third party firmware so HA can use them. I would assume that Tasmota has support for the remotes in the firmware but I’ve (obviously…) never looked.
Yeah, I need to do some more research.
@Coolie1101 What country are you in? Maybe get country specific advice to avoid argument over terms And my 2 cents, I love Shelly2.5’s they have energy monitoring are smaller better wifi reception not expensive and use MQTT with stock firmware within your network only, I bought a few and have just ordered a 12 more they’re great.
USA
Yeah, had know idea this thread would have taken the route it did, still a learning experience never the less.
I’ve looked at those, only issue is, no local control if HA / WiFi goes down.
I don’t think that’s correct.
Shellies have connections for wall switch inputs and should still work locally with no wifi.
At least my Shelly 1’s do flashed with ESPhome.
I understand that, but not controlled individually with the current wiring configuration.