Existing off-the-shelf doorbells + Particle photon/core = Slack doorbell with audio fallback.
dantaeyoung/SlackDoorbell
Existing off-the-shelf doorbells + Particle photon/core = Slack doorbell with audio fallback.
C++
Existing off-the-shelf doorbells + Particle photon/core = Slack doorbell with audio fallback.
C++