• LOW：LOWの間は何回でも発火
• CHANGE：LOW→HIGH と HIGH→LOW の変化時に発火
• RISING：LOW→HIGH の変化時に発火
• FALLING：HIGH→LOW の変化時に発火
• HIGH：HIGHの間は何回でも発火（UNOでは使用不可）

#include <TM1637Display.h> // 4-Dig LED Disp

#define FOURDIG_LED_CLK 4 // 7セグ4桁LEDはD4ピンに挿す
#define FOURDIG_LED_DAT 5
#define LED 8 // LEDはD8ピンに挿す
#define BUTTON 2 // ボタンはD2ピンに挿す

TM1637Display led4d(FOURDIG_LED_CLK, FOURDIG_LED_DAT);
int mode = 0; // 0=消灯モード、1=点滅モード
int count = 0; // ボタンを押した回数

void warikomi()
{
  led4d.showNumberDec(++count, false, 4, 0);
  if (mode) {
    mode = 0;
  } else {
    mode = 1;
  }
}

void setup() {
  led4d.setBrightness(0x0a);
  led4d.showNumberDec(count, false, 4, 0);
  pinMode(LED, OUTPUT);
  attachInterrupt(digitalPinToInterrupt(BUTTON), warikomi, RISING ); // 0=D2、1=D3
}

void loop() {
  if (mode) {
    // LED点滅
    digitalWrite(LED, HIGH);
    delay(100);
    digitalWrite(LED, LOW);
    delay(100);
  } else {
    // LED消灯
    digitalWrite(LED, LOW);
  }
}

#include <TM1637Display.h> // 4-Dig LED Disp
#include <Wire.h>
#include "RTClib.h"

#define BUZZER 7
#define BUTTON 8
#define FOURDIG_LED_CLK 2
#define FOURDIG_LED_DAT 3

RTC_DS1307 rtc;
TM1637Display led4d(FOURDIG_LED_CLK, FOURDIG_LED_DAT);

int last = 0;
bool isLedPower = true;
uint8_t dataLed[] = { 0,0,0,0 };

void beep1() {
  digitalWrite(BUZZER, HIGH);
  delayMicroseconds(1);
  digitalWrite(BUZZER, LOW);
}

void beep2() {
  digitalWrite(BUZZER, HIGH);
  delay(10);
  digitalWrite(BUZZER, LOW);
}

void beep3() {
  for (int i = 0; i < 3; i++) {
    digitalWrite(BUZZER, HIGH);
    delay(3);
    digitalWrite(BUZZER, LOW);
    delay(80);
  }
}

void beep4(int kai) {
  for (int i = 0; i < kai; i++) {
    digitalWrite(BUZZER, HIGH);
    delay(10);
    digitalWrite(BUZZER, LOW);
    delay(200);
  }
}

void setup() {
#ifdef AVR
  Wire.begin();
#else
  Wire1.begin(); // Shield I2C pins connect to alt I2C bus on Arduino Due
#endif
  rtc.begin();

  pinMode(BUTTON, INPUT);
  pinMode(BUZZER, OUTPUT);

  led4d.setBrightness(0x0a);
  beep3();
}

void loop() {
  if (! rtc.isrunning()) {
    led4d.showNumberDec(8888, false, 4, 0);
    beep2();
    delay(1000);
    return;
  }

  DateTime now = rtc.now();

  if (digitalRead(BUTTON)) {
    beep2();
    if (isLedPower) {
      for(int i=0; i<4; i++)
        dataLed[i] = 0;
      led4d.setSegments(dataLed);
      isLedPower = false;
    } else {
      isLedPower = true;
    }
    delay(500);
  }

  int nhour = now.hour();
  int nmin = now.minute();
  int counter = nhour * 100 + nmin;
  int nsec = now.second();
  if (last != nsec) {
    if(nsec == 0) {
      if(nmin == 0) {
        int kai = nhour % 6;
        if(kai == 0)
          kai = 6;
        beep4(kai);
      }
    }
    last = nsec;
    beep1();   
    if (isLedPower) {
      int num = counter;
      dataLed[3] = led4d.encodeDigit(num % 10);
      if (num > 10)
        dataLed[2] = led4d.encodeDigit((num / 10) % 10);
      if (num > 100)
        dataLed[1] = led4d.encodeDigit((num / 100) % 10);
      if (num > 1000)
        dataLed[0] = led4d.encodeDigit((num / 1000) % 10);
      else
        dataLed[0] = led4d.encodeDigit(0);
      if ((nsec % 2) == 0)
        dataLed[1] ^= 0b10000000;   
      led4d.setSegments(dataLed);
    }
  }
  delay(50);
}

使用パーツ

1. LED
2. LCD RGB Backlight
3. Buzzer
4. RIP Motion Sensor
5. Speaker

#include "rgb_lcd.h"

#define PIR_MOTION_SENSOR 2 // Pin D2
#define LED  4  // Pin  D4
#define BUZZER 5 // Pin D5
#define SPEAKER 6 // Pin D6

rgb_lcd lcd;
int counter = 0; // 32bit Max 2147483647
int lastValue = LOW;
char scount[17];
float gLastMtime = 0;
float gLastSound = 0;
int flagAlert = 0;

void kLcdoutDec(int i)
{
  sprintf(scount, "%14d", i);
  lcd.setCursor(0, 1);
  lcd.print(scount);
}

void beep() {
  int i;
  for (i = 0; i < 1; i++)
  {
    digitalWrite(BUZZER, HIGH);
    delay(4);
    digitalWrite(BUZZER, LOW);
    delay(1);
  }
}

void sound()
{
  int idx = 0;
  for (int j = 0; j < 3; j++) {
    for (int i = 0; i < 400; i++)
    {
      digitalWrite(SPEAKER, LOW);
      delayMicroseconds(500 - i);
      digitalWrite(SPEAKER, HIGH);
      delayMicroseconds(500 - i);
    }
    delay(200);
  }
  digitalWrite(SPEAKER, HIGH);
}

void LedOn()
{
  digitalWrite(LED, HIGH);
}

void LedOff()
{
  digitalWrite(LED, LOW);
}

void setup()
{
  pinMode(PIR_MOTION_SENSOR, INPUT);
  pinMode(LED, OUTPUT);
  pinMode(BUZZER, OUTPUT);

  pinMode(SPEAKER, OUTPUT);
  digitalWrite(SPEAKER, HIGH);

  lcd.begin(16, 2);
  lcd.clear();
  lcd.print("Work supervisor ");
  lcd.setRGB(0, 128, 0);
  beep();
//  delay(1000);
//  sound();
}

void loop()
{
  unsigned long mtime = millis();
  int sensorValue = digitalRead(PIR_MOTION_SENSOR);
  if (sensorValue == HIGH) {
    LedOn();
    counter = 0;
    flagAlert = 0;
    lcd.setRGB(0, 128, 0);
    if (lastValue != sensorValue) {
      int nondet = (int)((mtime - gLastMtime) / 1000);
      if (nondet > 10) {
        kLcdoutDec(nondet);
        beep();
      }
      gLastMtime = mtime;
    }
  }
  else {
    LedOff();
    if(mtime - gLastMtime > 10000) {
      flagAlert = 1;
      lcd.setRGB(128, 0, 0);
    }
    if(flagAlert == 1 && ((mtime - gLastSound) > 2300)) {
      gLastSound = mtime;
      sound();
    }
  }
  lastValue = sensorValue;
  if (++counter >= 1000000000)
    counter = 0;
}