So you would like to build your own smart robots and motorized gadgets? The Keigan Motor has you covered. It is a Bluetooth connected electric motor that lets you bring your ideas to life. It features speed/position/torque control, gyro/accelerometer, motion recording, and smartphone control.
The Keigan Motor will work with iOS and Android devices. You can use a portable USB battery as its power source. It has an accuracy of 0.05°. Users have the option to combine multiple Keigan motors in tandem for complex projects. Yet another interesting Kickstarter project.