Integrating Smart Video Doorbell with Traditional Chime

I recently undertook a project to upgrade my traditional doorbell to a smart video doorbell while retaining the classic chime sound. This was a fun and educational experience that I’d like to share with the community in case others are considering a similar upgrade.

The Challenge
My old doorbell system worked reliably but lacked the modern features I desired, such as video surveillance and remote monitoring. However, I still cherished the familiar chime sound it produced. I wanted to maintain that auditory cue while adding the convenience of a smart doorbell.

The Solution
After some research, I discovered that it’s possible to integrate a smart doorbell into the existing circuit. The key was using a smart switch or relay that can interrupt the circuit to trigger both the video doorbell and the traditional chime. I opted for a Zigbee-compatible smart switch, which allows for seamless integration with my home automation system.

Implementation Details

  1. Hardware Selection: I chose the Sonoff ZBMINI2 for its Zigbee compatibility and ability to handle the necessary current. It was perfect for this kind of low-voltage switching application.
  2. Circuit Integration: I wired the smart switch into the existing doorbell circuit. This way, when the doorbell button is pressed, it triggers both the video doorbell and the traditional chime.
  3. Automation Setup: Using my home automation platform, I created a rule where the smart switch toggles the chime circuit for a brief period (about 2 seconds) when the doorbell is activated.

Outcome
This setup has worked beautifully! I now have a modern video doorbell system with the added comfort of the familiar chime sound. It’s been a great way to blend old and new technologies.

Tips for Others

  • Test the Circuit First: Before integrating the smart switch, test the existing circuit to ensure it’s functioning correctly.
  • Use Short Pulses: Triggering the chime circuit for a short duration prevents unnecessary wear and tear on the components.
  • Consider Power Requirements: Ensure the smart switch can handle the voltage and current requirements of your doorbell system.

I’d love to hear from others who’ve undertaken similar projects or have tips for improving this setup. It’s always inspiring to see how the community innovates and adapts existing systems to meet modern needs!