Using capacitive and proximity sensing in Digital Photo Frames | Cypress Semiconductor
Using capacitive and proximity sensing in Digital Photo Frames
This article discusses one aspect of digital photo frames that is becoming more complex as the photo frames themselves are becoming more complex. This is the user interface. A user has to have a way to control the frame and access all of the features that it has. More specifically, this article discusses how to eschew mechanical buttons in favor of capacitive buttons and proximity sensing. When mechanical buttons are used, they must either be on the back or the front of the frame. When on the back, they can be somewhat hard to access by the user. For a frame that hangs on a wall, putting the buttons on the back likely is not even an option. If the buttons are on the front, it is likely that they will harm the aesthetic appeal of the frame, which is often made to be as attractive as possible. To read more on this topic, click the download link above or visit Electronic Design.