Anton
Published © GPL3+

Air Surfer

It is a device that measures CO2 levels, inside and outside temperatures, and humidity.

IntermediateFull instructions provided41,339
Air Surfer

Things used in this project

Hardware components

Arduino Mega 2560 & Genuino Mega 2560
Arduino Mega 2560 & Genuino Mega 2560
×1
3.2 inch tft module for Mega 2560
×1
Temperature probe
×1
Humidity and Temperature Sensor
Adafruit Humidity and Temperature Sensor
×1
mh-z19 CO2 sensor
×1
RTC module
×1
adjustable voltage regulator
×1
Aviation plug L89 G12
×1

Software apps and online services

Arduino IDE
Arduino IDE

Story

Read more

Schematics

Basic connections

Code

Air surfer code

Arduino
#include <Wire.h>
#include "RTClib.h"
//#include <Arduino.h>
#include <SPI.h>
#include <SoftwareSerial.h>
#include <SparkFunHTU21D.h>
#include <OneWire.h> 
#include <DallasTemperature.h>
#include <UTFT.h>

#define ONE_WIRE_BUS 9
#define GREENLED 5
#define YELLOWLED 7
#define REDLED 8
#define BUTTONLED 11

OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);

UTFT myGLCD(CTE32HR, 38, 39, 40, 41);  

HTU21D myHumidity;
RTC_DS1307 rtc;
 extern uint8_t Ubuntu[];
 
byte cmd[9] = {0xFF,0x01,0x86,0x00,0x00,0x00,0x00,0x00,0x79}; 
unsigned char response[9];
unsigned int ppm;
unsigned long time;
int photocellReading;

int hourupg;
int minupg;

float humd;
float temp;
int tcolor;
int Z; //LED brightness
boolean Reset = false; // for reseting display;

void lamps(void) {

  //CO2
if (ppm<800){  
  myGLCD.setColor(255,140,255); //green
  myGLCD.fillCircle(450, 87, 12);
  analogWrite(GREENLED, Z);
  analogWrite(YELLOWLED, 0);
  analogWrite(REDLED, 0);
  }
   if (ppm>800 & ppm<1200) {  
  myGLCD.setColor(70,70,255); //Yellow
  myGLCD.fillCircle(450, 87, 12);
  analogWrite(GREENLED, 0);
  analogWrite(YELLOWLED, Z);
  analogWrite(REDLED, 0);
} 
  if (ppm>1200){  
  myGLCD.setColor(VGA_AQUA);
  myGLCD.fillCircle(450, 87, 12);
  analogWrite(GREENLED, 0);
  analogWrite(YELLOWLED, 0);
  analogWrite(REDLED, Z);
  } 
  
  //Hum
  if (humd>30 & humd<50)  {
  myGLCD.setColor(255,140,255); //green
  myGLCD.fillCircle(450, 149, 12);
  }
   if (humd>20 & humd<30)  {
  myGLCD.setColor(70,70,255); //Yellow
  myGLCD.fillCircle(450, 149, 12);
  }
  if (humd<20)  {
 myGLCD.setColor(70,70,255); //Yellow
 myGLCD.fillCircle(450, 149, 12);
 }
  if (humd>50 & humd<60)  {
  myGLCD.setColor(70,70,255); //Yellow
  myGLCD.fillCircle(450, 149, 12);
  }
   if (humd>60)  {
 myGLCD.setColor(VGA_AQUA);
 myGLCD.fillCircle(450, 149, 12);
  }
  
  //Temp ins
 
  if (temp>20 & temp<27) {
  myGLCD.setColor(255,140,255); //green
  myGLCD.fillCircle(450, 213, 12);
  } else {
myGLCD.setColor(70,70,255); //Yellow
myGLCD.fillCircle(450, 213, 12);
   }
  //Tempouts
   
  if (sensors.getTempCByIndex(0)<10) {
myGLCD.setColor(70,70,255); //Yellow
myGLCD.fillCircle(450, 278, 12);
} else {
 myGLCD.setColor(255,140,255); //green
 myGLCD.fillCircle(450, 278, 12);
}}

void drawmain(void) {
myGLCD.setFont(Ubuntu);
if (tcolor==0) myGLCD.setColor(VGA_BLACK);
if (tcolor==1) myGLCD.setColor(VGA_SILVER);
if (tcolor==2) myGLCD.setColor(250,10,250);
if (tcolor==3) myGLCD.setColor(200,100,200);
if (tcolor==4) myGLCD.setColor(100,200,200);
if (tcolor==5) myGLCD.setColor(10,200,200);
if (tcolor==6) myGLCD.setColor(200,200,100);
if (tcolor==7) myGLCD.setColor(250,250,10);
if (tcolor==8) myGLCD.setColor(10,10,250);
if (tcolor==9) myGLCD.setColor(10,250,10);
if (tcolor==10) myGLCD.setColor(250,10,10);
if (tcolor==11) myGLCD.setColor(VGA_TEAL);
if (tcolor==12) myGLCD.setColor(VGA_AQUA);
  DateTime now = rtc.now();
   // Time
if (now.hour()<10) 
 { 
myGLCD.print("0", 190, 7);
myGLCD.printNumI(now.hour(), 215, 7);
 }
 else
 {
myGLCD.printNumI(now.hour(), 190, 7);
 }
 myGLCD.print(":", 240, 5);
 if (now.minute()<10) 
 { 
  myGLCD.print("0", 265, 7);
myGLCD.printNumI(now.minute(), 290, 7);
 }
 else
 {
  myGLCD.printNumI(now.minute(), 265, 7);
 }
//myGLCD.setColor(VGA_BLACK);
myGLCD.print("CO2", 18, 74);

  if (ppm > 999)
{
 
myGLCD.printNumI(ppm, 250, 74);
}
else
{
myGLCD.print(" ", 250, 74);
myGLCD.printNumI(ppm, 275, 74);
}
myGLCD.print("ppm", 348, 74);
myGLCD.print("Humidity", 18, 136);
myGLCD.printNumI(humd, 343, 136); //humd
myGLCD.print("%", 398, 136);
myGLCD.print("Temp(in)", 18, 200);
if (temp>=0) {
  
  if (temp<10) {
myGLCD.print(" ", 275, 200);
myGLCD.print("+", 300, 200); //temp
myGLCD.printNumF(temp,1, 325, 200);
}
else
{ 
myGLCD.print("+", 275, 200); //temp
myGLCD.printNumF(temp,1, 300, 200);
}
}

if (temp<0){
  if (temp>-10) {
    myGLCD.print(" ", 275, 200);
myGLCD.printNumF(temp,1, 300, 200);
}
else
{ 
 myGLCD.printNumF(temp,1, 275, 200);
}
}

myGLCD.print("C", 398, 200);
myGLCD.print("Temp(out)", 18, 265);
if (sensors.getTempCByIndex(0)<-100) {
  myGLCD.print("Empty", 300, 265);
}
else{
if (sensors.getTempCByIndex(0)>=0) {
  if (sensors.getTempCByIndex(0)<10) {
myGLCD.print(" ", 275, 200);
myGLCD.print("+", 300, 265);
myGLCD.printNumF(sensors.getTempCByIndex(0),1, 325, 265);
}
else
{ 
myGLCD.print("+", 275, 265);
myGLCD.printNumF(sensors.getTempCByIndex(0),1, 300, 265);
}}
if (sensors.getTempCByIndex(0)<0){
  if (sensors.getTempCByIndex(0)>-10) {
    myGLCD.print(" ", 275, 200);
myGLCD.printNumF(sensors.getTempCByIndex(0),1, 300, 265);
}
else
{ 
 myGLCD.printNumF(sensors.getTempCByIndex(0),1, 275, 265);}}

myGLCD.print("C", 398, 265);

}}
 
 
void dateandtime(void) {
  DateTime now = rtc.now();
hourupg=now.hour();
minupg=now.minute();
   //time adjustment
      if (digitalRead(3) == LOW) {
      if (minupg==59)
    {
      minupg=0;
    }
    else
    {
      minupg=minupg+1;
    }
     rtc.adjust(DateTime(0,0,0,hourupg,minupg,0));
 }

    if (digitalRead(2) == LOW) {
      if(hourupg==23)
    {
      hourupg=0;
    }
    else
    {
      hourupg=hourupg+1;
    }
    rtc.adjust(DateTime(0,0,0,hourupg,minupg,0));
    }}

void co2(void) {
 Serial3.write(cmd, 9);
  memset(response, 0, 9);
  Serial3.readBytes(response, 9);
  int i;
  byte crc = 0;
  for (i = 1; i < 8; i++) crc+=response[i];
  crc = 255 - crc;
  crc++;

  if ( !(response[0] == 0xFF && response[1] == 0x86 && response[8] == crc) ) {
    } else {
    unsigned int responseHigh = (unsigned int) response[2];
    unsigned int responseLow = (unsigned int) response[3];
    ppm = (256*responseHigh) + responseLow;
  }
}
void th(void) {
  humd = myHumidity.readHumidity();
  temp = myHumidity.readTemperature();
  sensors.requestTemperatures(); // Send the command to get temperature readings
}

void photosensor(void) {
  photocellReading = analogRead(12);
  if (photocellReading < 150) {
  // Serial.println(" - Dark");
     analogWrite(BUTTONLED, 5);
     Z=25;
   } else if (photocellReading < 300) {
  // Serial.println(" - Dim");
    analogWrite(BUTTONLED, 50);
    Z=80;
  } else if (photocellReading < 700) {
   // Serial.println(" - Light");
    analogWrite(BUTTONLED, 100);
    Z=120;
    } else if (photocellReading < 900) {
  // Serial.println(" - Bright");
     analogWrite(BUTTONLED, 150);
     Z=150;
  }  else {
  // Serial.println(" - Very bright");
    analogWrite(BUTTONLED, 200);
    Z=200;
  }
// Serial.print(photocellReading);
}

void screenreset(void) {
 if(((hourupg==0 && minupg==0) || (hourupg==12 && minupg==0)) && Reset==false) {
myGLCD.clrScr();
myGLCD.fillScr(VGA_WHITE);  //due to inverted colors on my display
myGLCD.setBackColor(VGA_WHITE); //due to inverted colors on my display
Reset=true;}
if((hourupg==0 || hourupg==12)&& minupg>0) {
 Reset=false; 
}}

void setup(void) {
myGLCD.InitLCD();
myGLCD.clrScr();
myGLCD.fillScr(VGA_WHITE); //due to inverted colors on my display
myGLCD.setBackColor(VGA_WHITE); //due to inverted colors on my display
Serial3.begin(9600);
//Serial.begin(9600);
  sensors.begin();
  myHumidity.begin();
  tcolor=0;
rtc.begin();
pinMode(GREENLED, OUTPUT);
pinMode(YELLOWLED, OUTPUT);
pinMode(REDLED, OUTPUT);
pinMode(BUTTONLED, OUTPUT);
pinMode(2, INPUT_PULLUP);
pinMode(3, INPUT_PULLUP);
pinMode(4, INPUT_PULLUP);
Z=0;
}

void loop(void) {

co2(); 
photosensor();
dateandtime();
th();
 
 if (digitalRead(4) == LOW){
 tcolor=tcolor+1;
 }
if (tcolor>=13) tcolor=0;
 
drawmain();
lamps();
screenreset();

}

Credits

Anton

Anton

2 projects • 33 followers
Hi! I'm a civil engineer. However, from time to time I develop arduino projects that help me to control things and make my life easier.

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