可触摸板是用于嵌入式设备的最基本的用户交互设备之一—小键盘、传感器和滚动轮也包含在许多不同设备中以用于不同的用途。
Touchable panels are one of the most basic user interaction devices for embedded devices — keypads, sensors, and roller wheels also are included in many different devices for various purposes.
它的两个主按键不是机械的，而是电容触摸传感器。它还有细微的扬声器，每当按击时都会有声音响应。鼠标还有一个滚球使用户能朝任意方向滚动页面。
The two main buttons are not physical, but instead use capacitive touch sensors with a tiny speaker to provide audible feedback for each click.
该传感器还致力于减少噪音和提高动态范围在一个相关双采样（CDS）的滚动快门模式。
The sensor also works in a rolling shutter mode with Correlated Double Sampling (CDS) to reduce noise and increase dynamic range.
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