#include <Wire.h>
#include <Seeed_HM330X.h>
#include "rgb_lcd.h"

HM330X sensor;
rgb_lcd lcd;
uint8_t buf[30];

void setup() {
  Serial.begin(9600); 
  Wire.begin();

  // LCD initialisatie
  lcd.begin(16, 2);
  lcd.setRGB(0, 255, 0); 
  lcd.print("Opwarmen...");

  // Sensor initialisatie
  if (sensor.init()) {
    Serial.println("HM330X init faal!");
    lcd.clear();
    lcd.print("Sensor Fout!");
    while (1);
  }
  
  delay(2000); // Wacht op stabilisatie
}

void loop() {
  // Lees de sensor uit (we proberen 29 bytes, dit lost vaak leesfouten op)
  if (sensor.read_sensor_value(buf, 29)) {
    Serial.println("Leesfout!");
    lcd.setCursor(0, 0);
    lcd.print("Leesfout!      ");
  } else {
    // Berekening van Atmospheric waarden (PM2.5 index 6/7, PM10 index 8/9)
     uint16_t pm25_val  = (uint16_t)buf[6] << 8 | buf[7];  
    uint16_t pm100_val = (uint16_t)buf[8] << 8 | buf[9];

    // Print naar Serial Monitor voor controle
    Serial.print("PM2.5: "); Serial.print(pm25_val);
    Serial.print(" | PM10: "); Serial.println(pm100_val);

    // Update LCD scherm
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("PM2.5: "); 
    lcd.print(pm25_val);
    lcd.print(" ug/m3");
    
    lcd.setCursor(0, 1);
    lcd.print("PM10 : "); 
    lcd.print(pm100_val);
    lcd.print(" ug/m3");
  }
  
  delay(5000); // Wacht 5 seconden tussen de metingen
}