Application structure of micro pressure sensor in key control field

Abstract

The invention provides an application structure of a micro pressure sensor in the key control field in order to overcome the defects that a capacitive screen only can achieve the single function of anon-off key and cannot achieve recognition in some application scenarios. The application structure comprises a power module, a micro pressure data acquisition chip and a micro pressure data analysischip, wherein the power module is used for converting externally input power into voltage values which can be provided for the micro pressure data analysis chip and the micro pressure data acquisitionchip respectively for working, and the micro pressure data acquisition chip and the micro pressure data analysis chip interact with each other through the I2C communication protocol. By adopting theapplication structure of the micro pressure sensor in the key control field, strength on keys can be recognized and then graded, and different strength levels can represent different control commands;of course, it can be set that all strength levels represent the same control command.

Description

technical field [0001] The invention relates to a button control system on the surface of an electronic screen, and more specifically, relates to an application structure of a micro pressure sensor in the field of button control. Background technique [0002] At present, capacitive screen buttons are used in the control schemes for the surface of electronic screens such as household appliances or mobile phones. Generally, capacitive screen buttons can only be touched by fingers and cannot be touched by other objects, because when the fingers touch Behind the surface of the key on the capacitive screen, the potential difference of the capacitor will change, thereby controlling the effect of the switch. The defect of the capacitive screen button is that it can only recognize whether the user has touched it, and cannot perceive the strength of the touch, so the capacitive screen can only be used as a single switch function. And in some application scenarios, sometimes, for exa...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the shortcomings that the capacitive screen can only be used as a single switch button and cannot be recognized in some application scenarios, the present invention proposes an application structure of a micro pressure sensor in the field of button control, which includes a power module, a micro pressure data Acquisition chip, micro-pressure data analysis chip, and power supply module are used to convert the external input power into voltage values ​​that can be provided to the micro-pressure data acquisition chip and micro-pressure data analysis chip, respectively supplying micro-pressure data acquisition chip and micro-pressure data The analysis chip works, the micro pressure data acquisition chip adopts XR10910-QFN40-0.5P, the working voltage is 2.8V, the micro pressure data analysis chip adopts MKL16Z64VFMA4-QFN32, the working voltage is 2.8V, the micro pressure data acquisition chip and the micro pressure data analysis chip Interact with each other through the I2C communication protocol

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