Arduino Doorbell Phone

Ring a phone and create a wireless doorbell with an Arduino.

Bryan gives step-by-step instructions of how he converted a 1940's Swedish-made Ericsson bakelite original into a wireless doorbell...

This project combines a battery-operated doorbell, antique phone, Arduino, and subscriber line interface circuit (SLIC) to make a wireless doorbell. The Arduino project include phone restoration, creation of a custom doorbell button transmitter, modification of the receiver, workings of the SLIC, and description of the Arduino code. A 'Retro' hack project will be of interest to people who like to repurpose antiques.

Link [Bryan Zimmer]