/*
  巴法科技 2022
  https://bemfa.com

  attachInterrupt(digitalPinToInterrupt(buttonPin),checkSwitch, RISING); //设置中断
  LOW	  每当引脚为低电平时触发中断
  HIGH  每当引脚为高电平时触发中断
  CHANGE	每当引脚值从高电平变为低电平或从低电平变为高电平时触发中断
  FALLING	当引脚从高电平变为低电平时触发中断
  RISING	当引脚从低电平变为高电平时触发中断

*/
 

const byte ledPin = D4;   //定义led引脚
const byte buttonPin = D3; //定义按钮引脚
bool ledState = false;     //led 状态
 
void IRAM_ATTR checkSwitch() {
   ledState = !ledState;
   digitalWrite(ledPin, ledState);
}
 
void setup() {
  pinMode(ledPin, OUTPUT); //设置led引脚为输出引脚
  pinMode(buttonPin, INPUT); // 设置led引脚为输入引脚
  attachInterrupt(digitalPinToInterrupt(buttonPin),checkSwitch, RISING); //设置中断
}
 
void loop() {
  
  
}

去除抖动版本

/*
  巴法科技 2022
  https://bemfa.com

  attachInterrupt(digitalPinToInterrupt(buttonPin),checkSwitch, RISING); //设置中断
  LOW	  每当引脚为低电平时触发中断
  HIGH  每当引脚为高电平时触发中断
  CHANGE	每当引脚值从高电平变为低电平或从低电平变为高电平时触发中断
  FALLING	当引脚从高电平变为低电平时触发中断
  RISING	当引脚从低电平变为高电平时触发中断

*/
 

const byte ledPin = D4;   //定义led引脚
const byte buttonPin = D3; //定义按钮引脚
bool ledState = false;     //led 状态
static unsigned long buttonLastMillis = 0;//时间戳，用于计算防抖


void IRAM_ATTR checkSwitch() {
   unsigned long newMillis = millis();//获取当前时间戳
    if(newMillis-buttonLastMillis > 30){  //是否大于30
        ledState = !ledState; //改变led状态
        digitalWrite(ledPin, ledState); //写入状态 
    }
    buttonLastMillis = newMillis;   //重新计算防抖动
   
}
 
void setup() {
  pinMode(ledPin, OUTPUT); //设置led引脚为输出引脚
  pinMode(buttonPin, INPUT); // 设置led引脚为输入引脚
  attachInterrupt(digitalPinToInterrupt(buttonPin),checkSwitch, RISING); //设置中断
}
 
void loop() {
  
  
}

使用acebutton库

支持短按和长按，长按时间是5秒，可自行修改buttonConfig->setLongPressDelay(5000);//长按时间5秒

/*
  巴法科技 2022
  https://bemfa.com

  在arduino IDE软件中，点击「工具」 →「管理库」 →「搜索Acebutton」点击安装

*/

#include <AceButton.h>
using namespace ace_button;



//按钮接口
const int buttonPin = D3;


//配置接口
AceButton ledButton(buttonPin);
//按键处理程序
void handleEvent(AceButton* button, uint8_t eventType,
    uint8_t) {

  switch (eventType) {
    //当短按时
    case AceButton::kEventReleased:
      Serial.println(F("Button: Pressed"));
      break;
    //当长按时
    case AceButton::kEventLongPressed:
      Serial.println(F("Button: Long Pressed"));
      break;
  }

}

//----------------------------------------------------------------------------

void setup() {
  delay(1000); // some microcontrollers reboot twice
  Serial.begin(115200);
  Serial.println(F("setup(): begin"));

  // Button uses the built-in pull up register.
  pinMode(buttonPin, INPUT_PULLUP);
  

  //按键配置
  ButtonConfig* buttonConfig = ButtonConfig::getSystemButtonConfig();
  buttonConfig->setEventHandler(handleEvent);
  buttonConfig->setFeature(ButtonConfig::kFeatureLongPress);
  buttonConfig->setFeature(ButtonConfig::kFeatureRepeatPress);
  buttonConfig->setFeature(ButtonConfig::kFeatureSuppressAfterLongPress);
  buttonConfig->setLongPressDelay(5000);//长按时间5秒

}

void loop() {

  ledButton.check();

}