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Grove - Mini Track Ball
Code: C000165
Barcode: 101020091

This module is based around a small trackball controller.
With the STM32F103C8T6 and AN48841B chip inside, you can turn plenty of your ideas into real things.
It is also standardized with Grove interface which will save you a lot of work in the process of prototyping.
$19.50
$13.65