When it comes to remote-control cars, not everyone "takes" to traditional joystick or trigger-style remotes. If you're one of those people, then you might be interested in the Ultigesture Gesture-Controlled Smart Car. It's controlled using arm movements, via a Bluetooth LE wristband.
The wristband incorporates an ARM Cortex M4F processor, along with an accelerometer, gyroscope and magnetometer. This combo is able to recognize a series of arm gestures, which are relayed to the car as commands. Its range is a claimed 20 meters (22 yds).
Moving the forearm up causes the car to move forward, and moving it down makes the car go backward – the farther the arm is moved in either direction, the faster the speed. Right-hand turns are initiated by twisting the forearm clockwise, while a counter-clockwise twist results in a left-hand turn.
Should users wish, they can also simply control the car by tilting their smartphone in different directions, using an accompanying Android app.
The vehicle itself features an impact-resistant ABS body, front and rear shock absorbers, and a top speed of 20 km/h (13 mph). One two-to-three-hour charge of its battery pack should be good for about 30 minutes of run time.
The Ultigesture Gesture-Controlled Smart Car is currently the subject of a Kickstarter campaign, where a pledge of US$89 will get you a car and wristband, when and if they reach production. It can be seen in action, in the video below.