He then made some modifications to the OpenCV Android Face Detection app to send commands to the Arduino based on ‘where’ the Face is detected; if the face is in the right half of the screen ...

Tolik777's Instructables walkthrough provides the details, but basically you're strapping an Arduino controller with a motor driver and Bluetooth receiver to an old RC car chassis, and controlling ...

We love RC cars and the Griffin MOTO TC Rally fulfills the joy with a fun, durable remote control car that uses an iPhone or Android phone via Bluetooth.

BlueDrone is a bluetooth-controlled r/c car that can be paired and controlled by using any android smartphone or tablet (android 2.1 or greater). You control the car with standard touchscreen ...

The build began as a simple two-motor, skid-steer RC car build with a fan for suction. Controlled by a smartphone app, a cheap Arduino board with an HC-05 Bluetooth module ran the show.

Then you'll need Android Meets Robots, an app that lets you pair voice recognition with any Bluetooth module. From there, it's just about pairing the two together and creating your own commands.