Double them up, add an esp into the dingdong box, detecting the sound sent to the speaker or probe somewhere else in the circuit, or even use a small mic if you don’t want to pull it apart.
Or it’s probably a 433 mhz signal from the button, sniff that and basically you can have your own receiver
Double them up, add an esp into the dingdong box, detecting the sound sent to the speaker or probe somewhere else in the circuit, or even use a small mic if you don’t want to pull it apart.
Or it’s probably a 433 mhz signal from the button, sniff that and basically you can have your own receiver
there’s someone who’s done the 433 mhz approach here https://community.home-assistant.io/t/433mhz-wireless-doorbell-monitor-on-an-esp/818738
or here https://reuben.science/posts/making-wifi-doorbell