网上找到的介绍：
引用:
仅需一个CapSense 器件即可替代许多机械开关和控制，实现简单的触摸感应界面。基于 CapSense 的“按钮”与“滑条”控制相对于机械产品而言具有更高的可靠性，因为他们都不必担心对暴露的按钮和开关造成影响的环境磨损。
与基于模块和部件的电容式感应产品相比，赛普拉斯的 CapSense具有：更大的灵活度、更小的板级空间和更低的成本。设计人员还能够轻易将CapSense以外的多种功能（如 LED 驱动和 LCD 显示）集成到设计当中。此外外，PSoC CapSense 解决方案还具有诸多优点：如采用I2C、SPI 或 USB 接口的便捷通信、利用同一器件来实现跟踪板（x-y 矩阵）和线性滑条应用，以及可通过基于闪存的 PSoC 架构快速更改设计。
Cypress的CapSense触摸感应技术是基于电容变化的触摸感应技术。它通过在PSoC芯片上所构建的CapSense模块来实现触摸感应的应用。CapSense依靠PSoC芯片所具有的丰富的数字资源、模拟资源和MCU资源以及它的数字与模拟资源可配置的强大功能，使CapSense触摸感应技术不仅具有好的触摸感应性能，而且外围元件少，可支持的触摸感应器的数目多，在实现触摸感应功能的同时也可以实施其他的MCU应用功能。
SmartSense™
is the latest advance from Cypress - the world leader in Capacitive
Sensing. With SmartSense’ Cypress has incorporated a sophisticated
algorithm which automatically optimizes CapSense performance in a wide
range of applications such as Multi-media buttons, Printers, Bluetooth
Headsets etc. Many generic microcontroller solutions available in the
market today require customers to identify and optimize many parameters
making the tuning a time-consuming process. SmartSense makes Cypress
CapSense the easiest solution to use in the market reducing time to
market significantly.
Key Features :
> Automatically adjust for manufacturing variation e.g., PCB, Overlay thickness
> Automatically calibrate out variations in environmental noise
> Available in Cypress’s new low-power, 1.71V CapSense family :
CY8C20xx6A > Support for up to 33 CapSense I/Os and 6 Sliders
> Use with Proximity Sensing, Waterproofing, LED Dimming etc.
> Patented CSD algorithm for robust immunity to conducted and radiated noise
> Available in
PSoC Designer 5.0, SP 6
详情可以看看官网的内容：http://china.cypress.com/?id=2014
大家来看看CY8C20xx6A这个器件怎么玩？请放飞你的思路！
CapSense的一个介绍：
Composite Drawing.pdf (102.67 KB)
