Capacitive Touch Button Research And Implementation Of The Calibration Method

Based on the extensive application of the capacitive touch buttons in a varietyof consumer electronic products, the workload of the engineers also increased. Forexample, different customers use the capacitive touch buttons to their needs.Forexample, different customers use the capacitive touch buttons to theirneeds.Different capacitive touch buttons that capacitive touch key parameters(sensitivity, key, etc.); different manufacturers of the remote control code value isalso different. Engineers of the supplier when customers need to modify theseparameters are usually looking to provide the capacitive touch buttons arecapacitive touch IC underlying program to be modified, time-consuming anderror-prone. In order to reduce the workload of the touch sensor technologyengineers, but also to facilitate the use of the customer, and then research anddesign customer-oriented capacitive touch-key calibration tool. With this readingtool, customers do not have the respective capacitance touch key parameters suchas sensitivity, channel number (key number) and the remote control key value databy the clerk showed the engineers modified in the corresponding program, but tousethe reading tool to modify and simplify the work procedures, to avoidartificially mistakes, improve efficiency, shorten the development cycle, and moreto meet the personalized demands of customers on the capacitive touch buttons.The calibration tools include the hardware part and software part. Hardwarepart of the verification tool, you can read the parameter data of the infrared remotecontrol codes, the code value and the capacitive touch buttons, and displayed onthe LCD screen, and parameter data can be sent through the serial communicationapplications to the calibration tool; The software part of this verification tool,customers can also directly read the capacitive touch buttons sensitivity, thenumber of keys and the remote control code value data, and writes the data incapacitive touch control IC binary file. Finally, the resulting binary file to burn in the capacitive touch button control chip, can achieve the function of the buttoncorresponding to customer needs.