A timer-controlled doorbell device has been developed using two 555 timer ICs in monostable mode, combined with a relay ...

The new Blink video doorbell is finally getting its first deep discount and it’s coming as one of Amazon’s early Prime Day ...

If your house, like mine, was built before traditional electric doorbells were a thing, it may be difficult to run a low-voltage doorbell circuit for a wired video doorbell.

Fixing a doorbell is usually an easy repair, Most often, the problem is the switch (doorbell button). Less frequently, the transformer may be bad, the chime may not be working, or there may be a ...

One leg of the doorbell circuit is passed through the center of this sensor, and the sensor itself is connected up to your microcontroller of choice (here, and ESP32).

Here is an AC triggered Multitone, polyphonic doorbell. It gives eight melodious tunes for 2 minutes. On each press it will give a new tone which will continue till the melody is over. The circuit is ...