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Touch Sensor Button

Overview

This example demonstrates the use of a touch sensor for key short and long presses.

A touch held for less than 500 milliseconds and released is a short press, and a touch held for more than 3 seconds is a long press.

Requirements

Touch sensor keys are connected in the following table:

IO Number	IO Nmae	Touch Number
16	PB0	3
17	PB0	4
18	PB0	5
12	PA12	CMOD
14	PA14	CMC

Building and Flashing

Example Location： examples/peripheral/touch_sensor/touch_button

For compilation, burning, and more, please refer to: Quick Start Guide

Running Result

Successfully running will output the following logs

D/dt              [0.038] add device touch_sensor
D/dt              [0.042] add device gpio
I/touch           [0.046] touch button init ok
I/touch           [7.318] key5 pressed
I/touch           [11.326] key5 pressed
I/touch           [14.768] key5 long pressed
I/touch           [99.176] key4 pressed
I/touch           [99.754] key3 pressed