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나 아두이노에서 데이터 처리를 위한 프로그램 소스.

#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include "sound_effect.h"

LiquidCrystal_I2C lcd(0x3f,16,2);

int blue_pin = 2;
int green_pin = 3;
int red_pin = 4;
int pin = 8;
int buzzer_pin = 13;
unsigned long duration;
unsigned long starttime;
unsigned long sampletime_ms = 5000;
unsigned long lowpulseoccupancy = 0;
float ratio = 0;
float concentration = 0;
float pcsPerCF = 0;
float ugm3 = 0;
uint8_t clock[8] = {0x0, 0xe, 0x15, 0x17, 0x11, 0xe, 0x0};

void setup() {
Serial.begin(9600);
pinMode(8,INPUT);
pinMode(2,OUTPUT);
pinMode(3,OUTPUT);
pinMode(4,OUTPUT);
pinMode(13,OUTPUT);
digitalWrite(blue_pin, HIGH);
digitalWrite(green_pin, HIGH);
digitalWrite(red_pin, HIGH);
starttime = millis();
lcd.begin();
lcd.backlight();
lcd.clear();
lcd.print("Hello! Meister!");
lcd.setCursor(0, 1);
lcd.print("<CHECK DUST>");
lcd.createChar(1, clock);
seSqueak(13);
delay(5000);
if( ugm3 == 0){
lcd.clear();

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