Seriously. If you're tired of your dolls just sitting around taking it easy or riding the liftinstead of taking the stairs - it's time to give them some real fun by riding a miniature mechanical bull. The beast is driven by two servos to give tilt action over two axes and controlled by an Arduino with an analogue joystick, allowing the user to test the doll's stamina over the eight-second rush. It's simple to construct and a whole lot of fun, for example:
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If you're new to Arduino, the first step is a solid board for your projects - our Freetronics Eleven - the Arduino-Uno compatible with low-profile USB socket, onboard prototyping space and easy to view LEDs: