Doorbell phone

Doorbell phone

MAKE subscriber Bryan Zimmer had a cool Bakelite antique telephone and no landline, so he decided to press it into service as a wireless doorbell for his apartment. He writes of the project:

This project combines a battery-operated doorbell, antique phone, Arduino, and subscriber line interface circuit (SLIC) to make a wireless doorbell. Readers are taken through basic phone restoration, creation of a custom doorbell button transmitter, modification of the receiver, workings of the SLIC, and description of the Arduino code. Readers must know how to read a schematic, but soldering and other electronics knowledge are optional. This project will be of interest to those who like to customize their home or office, people who like to repurpose antiques, and those who have been wondering how to ring a phone with an Arduino or other microcontroller.

Doorbell Phone

2 thoughts on “Doorbell phone

  1. espow says:

    Video doorphone can make you feel secure when you or your children have to open the door for strangers. The convenient, compact system uses both video and audio to alert you when someone comes to your door. Check out for any kind of video door phone you like.

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Gareth Branwyn is a freelance writer and the former Editorial Director of Maker Media. He is the author or editor of over a dozen books on technology, DIY, and geek culture. He is currently a contributor to Boing Boing, Wink Books, and Wink Fun. His free weekly-ish maker tips newsletter can be found at

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