Call Twitter From A Hacked Rotary Phone [Instructables How-To] | The Creators Project

The Rotary Emotiphone is a vintage rotary phone thats been revived to tweet emoticons. This particular project, by Instructables user ...

... comes with a list of predefined emoticons, each assigned to a single digit and matched with a uniquely colored ...

Some of the materials and tools youll need are a rotary phone, an Arduino Uno, a WiFly shield, a MCP23017 I/O Expander, a perfboard or stripboard, seven different colored 3mm LEDs, three dual-color 3mm LEDs, 20 × 100 Ohm resistors, an on/off switch, electric wire, four AA battery holders, a DC power connector, a cordless drill, 3mm drill bit (for the LEDs), 12mm drill bit (for the switch), solder and soldering iron, hot glue gun and multimeter.

Before you start, disassemble the phone and take out anything you dont need, including the solenoids, bells, large capacitors, and metal brackets. Then gently remove the flat, opaque disc located behind the finger holes of the dialer. Keeping in mind where the finger holes are, drill 10 3mm holes into the plastic behind the dialer. Connect a common ground wire to all of the single-color LEDs cathodes (short legs) and connect the wire as close as possible to the LEDs. Cut off the excess metal of the legs and bend them so they dont stand in the way when reassembling the dialer and case. Also, remember to leave some wire at the end to connect to the Arduino.