2 ms·

Or just remove the door knocker :)

• OldHand2018 5y ago
  Not if it looks great! I just bought a house and discovered that it has a working long-tube door chime system! It’s got 3 brass tubes, each over a meter long, perfectly tuned and plays a short musical number when someone presses the button. You can sure hear it anywhere in the house, but I really like this MQTT idea!