Can't hear the doorbell from the back of the house? It's easy to correct that by adding a second doorbell chime.

and a doorbell transformer that converts your home's 120-volt (V) power to the lower voltage power requirements (usually 16 V) used by the system. You’ll be working with the exterior button first.

The board monitors the voltage drop across a resistor in the doorbell circuit. When the comparator on the AVR detects a rise in the voltage drop across the resistor it rings the chimes ...

This Wi-Fi doorbell camera isn’t much to look at, but it’s packed with features, it’s affordably priced, and it doesn’t ...

Most people stumble when they get to the point where they have to connect their low-voltage microcontroller up to the relatively beefy transformer that drives a standard doorbell. We’ve seen a ...

This step is non-negotiable; even though most doorbells operate on low voltage, avoiding any risk of electrical hazards is safer. Next, remove the cover plate of the doorbell button using a ...