Esp8266 to domotize/hack an Hager intercom?

ESPHome
1

Hello,

I have an intercom (brand: Hager, model: LCP01F), and I wanted to find a way to domotize it. I found some documentation online (sorry it’s in french) :

image

here is the documentation : LCP01F | Hager

I see that there are 2 data cables and 2 alimentation cables.

Do you think it could be possible to add an esp8266 or esp32 in between (for example, if we see some data on the data cables that mean there is a signal?)

I don’t want to modify the intercom or to solder anything on it.

Someone has already did something like that? Do you have any idea on how to do that?

Ideally, I want to :

  • be able to know when the button is pushed
  • be able to enable/disable it during the night (the sound is quite loud ^^)
  • bonus : be able to see portal opening state

Thanks in advance!