How To Change Your Ring Doorbell's Sound
In the olden days, if you wanted to replace the chime that your doorbell ... list of available chime tones that can play when ...
Hackaday4y
Never Miss A Doorbell With This Notifier
The doorbell detection is surprising but simple and non-intrusive, instead of running a GPIO line through some kind of interface to the button itself he’s added a reed switch to his ESP8266 ...