Create this project due to not find any buzzer that with features that I intended (both commercial and DIY).
The code was created so as not to be too heavy for terminal, so all notifications are via mqtt (provided you have mqtt this good hahah). This way they can notify you so they can notify you what they want (with photo, video or even text only), your imagination is the limit (alexa, telegram, mediaplayer …)
Hi @hsepm thanks, About questions, if you have Pulse configure you can use the module-echo-cancel(I use raspberry pi zero with alsa only)
About piface you need adapted code to add this module (i think it is easy).