SparkFun Blackberry Trackballer Breakout
By Robolab Technologies In More InfoThe SparkFun BlackBerry Trackballer Breakout gives you easy access to a trackball which measures up, down, left, and right movements, clicks on the board, as well as adding a bit of flair to your project with four built-in LEDs. The trackballer breakout can be hooked into an Arduino compatible device to provide you with an intuitive direction controller.
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