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Another great hack from Hackaday:

This RC truck can be controlled with the tip of your thumb or the tilt of a wrist. That’s thanks to the IOIO which was inserted in place of the toy’s original controller. [Exanko] made the hardware changes in order to use his Android phone as the controller. The white circle is a software joystick that acts as throttle when your thumb moves along the Y axis, and steering when it moves along the X axis. But while he was at it he also included accelerometer input as an alternative control option.

The IOIO board has a Bluetooth dongle connected to its USB port as a means of wireless communication. The dongle was hacked to accept an external antenna, thereby increasing the truck’s range. There is also some on-board flair like LEDs for lights and even a laser diode for… well we’re not sure what that’s for. Get a better look at the hardware internals in the clip after the break