如何在3x4键盘的接近和触摸感应之间切换

让我看看我能否从CAPSENSE专家那里获得一些代码并更新您。
最好的问候，
加内什
PSoC Hacker



     以下为原文
  Let me see if I can get some code from the capsense experts and update you.
     
    Best Regards,
    Ganesh
    The PSoC Hacker

是的，你将不得不使用两排电阻，一个接近和其他当你想扫描按钮由于在寄生电容的区别。我附上工程实例，在那里你将一些按钮，扫描他们的同时。这是一个接近传感器具有较大的测量范围。一旦传感器被激活，你可以使用剩余的按钮，按钮扫描正常。
我已经实现了它的cy3280-21x34 SLM模块可在这里：http://www.cypress.com/？RID＝37761。我使用滑块和按钮区接近正常按键扫描。我在这里只使用一个泄放电阻，作为我的感知领域是不同的，我调整了相应。另外，我在这里使用屏蔽电极降低寄生电容。我打开LED当我发现邻近一个手指和一个领导当我的钮扣是活跃的。只有当我检测到接近时，我的按钮才会被扫描。
你可以做这个项目是为了修改扫描相同的传感器。你可能需要一个虚拟传感器，您将连接邻近传感器的休息。你只会扫描，虚拟传感器，一旦接近检测，断开所有单个扫描传感器。
让我知道，如果你有困难，实现这一点。最好的问候，Prakhar



     以下为原文
  Yes, you will have to use two separate bleed resistors, one for proximity and the other when you want to scan the buttons due to the difference in the parasitic capacitance. I am attaching an example project, where you connect some buttons together and scan them simultaneously. This acts as a proximity sensor as it has a larger sensing area. Once the sensor is active, you can use the remaining buttons for normal button scanning.
    I have implemented it on CY3280-21x34 SLM module available here: http://www.cypress.com/?rID=37761. I use the slider area for proximity and the buttons for normal button scanning. Here I am using just one bleed resistor, as my sensing areas are different and I've tuned them accordingly. Also, I am using the shield electrode here to reduce the parasitic capacitance.I turn on an LED when I detect proximity to a finger and another LED when my buttons are active. My buttons are scanned only when I detect proximity. 
    What you can do with this project is to modify it scan the same sensors. You may require a dummy sensor  with which you'll connect rest of the sensors for proximity. You'll just scan that dummy sensor and once the proximity is detected, disconnect all the sensors for individual scanning. 
    Let me know if you have trouble with implementing this.

Best Regards,
Prakhar

我认为最后一个帖子的附件有问题。我再次在这里附上这个项目。
谢谢。
普拉哈尔
带扣钮扣
412 K



     以下为原文
  I think there was some problem with the attachement in the last post. I am attaching the project here again.
    Thanks.
    Prakhar

•   Gang_Proximity_with_Buttons.zip 412.0 K