I want to combine a wireless 3-way switch with a manual 3-way switch, and want my server at home to know when my light is on or off (this is the tricky part). And when I say wireless 3-way switch, I mean something M2M, not a manual wireless switch.
For example I could do that with a "dual pow" from Sonoff, but this device does not exist.
There is a “pow” switch, that can tell me if the current is flowing, but it’s not 3-way, so I cannot combine it with a manual 3-way switch. There is also a dual relay from sonoff, and with that I can do a 3-way switch but it won’t tell me if the light is on or off.
I can do that myself on the breadboard with something like ESP8266 for the wireless + ACS712 for the current detection + 2 switches for the 3-way switch but I want something safe and reliable and I don’t have the tools and the knowledge to do so.
I also don’t want to replace all my manual switches by wireless switches, it would be a cool solution but I have way too many manual switches and I’m looking for something cheap.
Do you have any idea how I can do that ? This is what I have so far :
- Dual pow from sonoff => does not exists
- Dual switch from sonoff + current detector => didn’t find any good out-of-the-box 220V wireless cheap current detector
- Two pow switch from sonoff => too big and too expensive
As a current detector to know if my light is on or off I could simply use an ESP8266 chip powered on 220V and plugged just behind my lamp : when I ping it that's ON and when I don't that's OFF but I didn't find any cheap device powered in 220V with esp8266. I can find some on aliexpress but there is no plastic case around it.
I hope I’m clear ^^ if you know any hardware that can help me, either a 3-way wifi switch with a current detector on it or even just a 220V powered wireless cheap current detector please tell me about it ! Also if you know any other solution I can use to manage what I want to do I would be very glad to hear about it.
Thanks and happy home automation !