一种便宜有效的新型触摸电路

目前市面上有多种触摸芯片,价格不菲,使用比较复杂,而且很多会在抗干扰性方面做得不是很完善。本文介绍一种简单有效的外接式触摸电路,不需要专用触摸芯片,仅通过一些简单的电路便可检测出触摸信号,由单片机来识别并进行相应的处理。

A new, cheap and reliable touch sensor circuit

There are many touch chips in current market, which are usually expensive and their setting process are very complicated, moreover, the EMC problems are becoming the technology limitations of many makers. This paper introduces a simple and reliable touch circuit, which need not special touch sensor chips, just through some easy hardware circuits, the touch signals can be checked, and a microcontroller can recognize the signals, and thus decide to how to do.