Office monitor

monitor.ino

#include <LedControl.h>

#include <AirQuality.h>
#include <Arduino.h>

#include <Firmata.h>
#include <Boards.h>
#include <math.h>
#include <DHT.h>

#define RED 12
#define GREEN 13

#define SOUND_SENSOR A4
#define LIGHT_SENSOR 0
#define POLLUTION_SENSOR A0

#define DHTPIN A2
#define DHTTYPE DHT11 

AirQuality airqualitysensor;
int current_quality =-1;

/*
  MAX72XX
 pin 10 is connected to the DataIn 
 pin 8 is connected to the CLK 
 pin 9 is connected tp CS
 */
 
LedControl lc=LedControl(12,10,11,1);

DHT dht(DHTPIN, DHTTYPE);

float lightSensor;

int staticValues[] = {
  B00000000,
  B10000000,
  B11000000,
  B11100000,
  B11110000,
  B11111000,
  B11111100,
  B11111110,
  B11111111
};

// the setup function runs once when you press reset or power the board
void setup() {
  //pinMode(RED, OUTPUT);
  //pinMode(GREEN, OUTPUT);
  pinMode(SOUND_SENSOR, INPUT); 
  //pinMode(LIGHT_SENSOR, INPUT); 
  airqualitysensor.init(POLLUTION_SENSOR);
  dht.begin();
 
  lc.shutdown(0,false);
  lc.setIntensity(0,8);
  lc.clearDisplay(0);
  Serial.begin(9600);
  
}


// the loop function runs over and over again forever
void loop() {
  tempHumedad();
  sound();
  pollution();
  //tone(10, 440, 1000);

  /*int sensorValue = analogRead(LIGHT_SENSOR); 
  lightSensor = (float)(1023-sensorValue)*10/sensorValue;
  
  Serial.print(sensorValue);
  Serial.println(" light");*/

  delay(10000);
  
}


void pollution(){
  current_quality=airqualitysensor.slope();
  if (current_quality >= 0)// if a valid data returned.
  {
      if (current_quality==0){
        Serial.println("High pollution! Force signal active");
        lc.setRow(0,6,10);
        lc.setRow(0,7,10);
      }
      else if (current_quality==1){
        Serial.println("High pollution!");
        lc.setRow(0,6,8);
        lc.setRow(0,7,8);
      }
      else if (current_quality==2){
        Serial.println("Low pollution!");
        lc.setRow(0,6,4);
        lc.setRow(0,7,4);
      }
      else if (current_quality ==3){
        Serial.println("Fresh air");
        lc.setRow(0,6,0);
        lc.setRow(0,7,0);
      }
  }
  }
  ISR(TIMER2_OVF_vect)
  {
      if(airqualitysensor.counter==122)//set 2 seconds as a detected duty
      {
          
          airqualitysensor.last_vol=airqualitysensor.first_vol;
          airqualitysensor.first_vol=analogRead(POLLUTION_SENSOR);
          Serial.print(airqualitysensor.first_vol);
          Serial.println("Poll");
          airqualitysensor.counter=0;
          airqualitysensor.timer_index=1;
          PORTB=PORTB^0x20;
      }
      else
      {
          airqualitysensor.counter++;
      }
}

void sound(){
  int soundValue = analogRead (SOUND_SENSOR);
  Serial.print(soundValue);
  Serial.println(" sound");
  int value = soundValue / 100;
  lc.setRow(0,4,staticValues[value]);
  lc.setRow(0,5,staticValues[value]);
}

void tempHumedad(){
  float h = dht.readHumidity();
  float t = dht.readTemperature();

    // check if returns are valid, if they are NaN (not a number) then something went wrong!
  if (isnan(t) || isnan(h)) {
        Serial.println("Failed to read from DHT");
  }
  else {
    Serial.print(t);
    Serial.println(" temp");
    Serial.print(h);
    Serial.println(" humi");
    
    int value = 0;
    if(t > 24)
      value = t - 24;
    else if(t < 17)
      value = 17 - t;
     
    lc.setRow(0,0,staticValues[value]);
    lc.setRow(0,1,staticValues[value]);

     value = 0;
     if(h > 50)
       value = 50 - h;
     else if(h < 40)
       value = 40 - h;
      value = value / 2;
      
    lc.setRow(0,2,staticValues[value]);
    lc.setRow(0,3,staticValues[value]);
     
  }
}


void paintCollumns(int col1, int col2, int value){
  for(int i = 0; i < value; i++){
    lc.setLed(0,col1,i,true);
    lc.setLed(0,col2,i,true);
  }
  for(int i = value; i < 8; i++){
    lc.setLed(0,col1,i,false);
    lc.setLed(0,col2,i,false);
  }
}