基于电容感测高温隔离触控模块的研制

电容式感测是一种低功耗、低成本且高分辨率的非接触式感测技术，适用于接近检测、手势识别和远程液位感测等。采用FDC2214电容式传感技术检测触控按键，有效去除干扰。将检测值通过IIC总线传送给MSP430单片机，使用自适应算法处理数据以确定某个物体是否在目标感应区域内，最远感应距离可达30cm。在工厂应用中可用厚玻璃窗实现对恶劣环境的隔离，人机交互时无需进入高温、灰尘、油渍等恶劣环境就可实现操控，保证了安全性并节省了成本。

Research on High Temperature Isolation Touch Control Module based on Capacitance Sensor

Capacitive sensing is a kind of low power, low cost and high resolution non-contact sensing technology, which can be used in proximity detection, gesture recognition and remote sensing. The FDC2214 capacitive sensing technology is used to detect the touch button, which can effectively remove the interference. The detection value is transmitted to the MSP430 microcontroller through the IIC bus, using the adaptive algorithm to process the data to determine whether an object is in the target area, the most remote sensing distance can up to 30cm. In plant applications using thick glass window to isolate the harsh environment, so human-computer interaction without need to enter the high temperature, dust, grease and other harsh environment that can achieve operation, can ensure the safety and save the cost.