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Touch detection method, MCU, touch device and storage medium

A technology of touch detection and detection frequency, which is applied in the direction of program control design, program control device, instrument, etc., can solve the problem of high power consumption of MCU, and achieve the effect of improving the efficiency of touch detection

Pending Publication Date: 2020-02-18
SHENZHEN GOODIX TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And when the user only needs to control a certain street light, but each channel is still in the wake-up state, this will inevitably cause a problem of high power consumption of the MCU

Method used

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  • Touch detection method, MCU, touch device and storage medium
  • Touch detection method, MCU, touch device and storage medium
  • Touch detection method, MCU, touch device and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] As mentioned above, current touch devices include: a Microcontroller Unit (MCU) and touch buttons, and there is a channel between the MCU and the touch buttons. figure 1 It is a schematic diagram of the connection between the MCU and the touch button, such as figure 1 As shown, the typical touch buttons that currently exist include: button-type touch buttons, slider-type touch buttons and round-shaped touch buttons. Touch sensors are arranged under these touch buttons, so the above-mentioned touch buttons can also be called touch-sensing electrodes. ,Such as figure 1 Buttons 0, 1, and 2 are all button-type touch buttons, button 3 is a round-shaped touch button, and button 4 is a slider-type touch button. Among them, the slider-type touch button is equivalent to being composed of 3 touch buttons or units, and the circular touch button is equivalent to being composed of 4 touch buttons or units. Each touch button or unit is connected to the MCU through a channel, for exa...

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PUM

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Abstract

The invention provides a touch detection method, an MCU, a touch device and a storage medium. The MCU is connected with N touch keys through N channels, and the N channels are in one-to-one correspondence with the N touch keys. The method comprises the steps that the MCU obtains a low-power-consumption mode setting instruction; the MCU enters a low-power-consumption mode according to the low-power-consumption mode setting instruction; AND the MCU performs initial touch detection on the at least one touch key in the low-power-consumption mode. Therefore, the power consumption of the MCU can bereduced.

Description

technical field [0001] The present application relates to the field of touch technology, and in particular to a touch detection method, an MCU, a touch device, and a storage medium. Background technique [0002] Currently, touch devices are frequently used in people's daily life, such as gas stoves, touch lamps, and the like. These touch devices include: a microcontroller unit (Microcontroller Unit, MCU) and a touch button, wherein there is a channel between the MCU and the touch button. [0003] The principle of the MCU detecting whether there is a finger pressing on the touch button is: any touch button can be understood as a capacitor, and the MCU can obtain the voltage on the channel corresponding to the touch button through an analog-to-digital converter (Analog-to-Digital Converter, ADC). Vout, when no finger is pressed on a touch button, usually the Vout is 2048, where 2048 is the value after normalization processing according to the accuracy of the ADC, and the Vout...

Claims

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Application Information

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IPC IPC(8): G06F3/041G06F9/4401G06F1/3215G06F1/3234
CPCG06F3/0416G06F1/3215G06F1/3243G06F9/4418
Inventor 王林
Owner SHENZHEN GOODIX TECH CO LTD