Successfully Integrating Shelly into a Dumb Intercom System

I’ve been experimenting with integrating a Shelly device into my dumb intercom system, and I wanted to share my journey and findings with the community. This project has been a mix of curiosity, trial and error, and a bit of excitement as things started coming together.

Initially, I was faced with a simple yet intriguing challenge: my intercom system has two buttons, and I wanted to receive notifications whenever someone presses them. The system is pretty basic, and I wanted to avoid soldering if possible. After some research, I discovered that when a button is pressed downstairs, specific pins go from 0 to 16v. This gave me an idea—could I use a Shelly device to detect this voltage change and send me a notification?

I decided to give it a shot. I knew that the Shelly could handle 220v, so I carefully placed it inside the phone unit. My main concern was ensuring that everything was properly insulated to prevent any electrical mishaps. After setting up the Shelly and configuring it within my home automation system, I was thrilled to see that it worked! The Shelly detected the voltage change and sent me a notification through my smartphone. It was a moment of triumph after a lot of planning and cautious execution.

This project has been a fantastic learning experience. It taught me more about voltage detection, device integration, and the importance of careful wiring. If anyone is looking to integrate a Shelly into a similar setup, I’d recommend starting with a thorough understanding of your system’s voltage changes and ensuring all safety precautions are in place.

I’m now exploring further possibilities with my Shelly devices, and I’m excited to see what other creative solutions I can come up with. If you’ve got any questions or tips about integrating Shelly into intercom systems, I’d love to hear from you!