# Micro weather station. table no.:-2

**URL:** https://scienceactivitycentreiiserpune.discourse.group/t/micro-weather-station-table-no-2/244
**Category:** WeatherHackathon2026
**Created:** [February 27, 2026, 10:32am UTC](https://scienceactivitycentreiiserpune.discourse.group/t/micro-weather-station-table-no-2/244 "2026-02-27T10:32:01Z")
**Posts on this page:** 3
**Page:** 1

<div class="post-metadata">

### Author: ![Yash](https://avatars.discourse-cdn.com/v4/letter/y/f17d59/32.png) [@Yash](https://scienceactivitycentreiiserpune.discourse.group/u/Yash)
#### Post date: [February 27, 2026, 10:32am UTC](https://scienceactivitycentreiiserpune.discourse.group/t/micro-weather-station-table-no-2/244/1 "2026-02-27T10:32:01Z")

</div>

Teacher name- Amita Rasal

Students name-Shreyash pul ,Prem Sonowane,Yash Gaikwad

We made weather station successfully as we use dht11 sesor which gets the current status of temperature and other details which is after shared or passed to lcd display and current status of temperature and weather display on it

Code:-#include \<Wire.h\>  
#include \<Adafruit\_BMP085.h\>  
#include \<DHT.h\>  
#include \<LiquidCrystal\_I2C.h\>

#define DHTPIN 2  
#define DHTTYPE DHT11

DHT dht(DHTPIN, DHTTYPE);  
Adafruit\_BMP085 bmp;  
LiquidCrystal\_I2C lcd(0x27,16,2);

int led = 8;  
int buzzer = 9;  
int button = 7;

int screen = 0;

float maxTemp=-100;  
float minTemp=100;  
float oldPressure=0;

unsigned long screenTimer=0;

void setup()  
{  
pinMode(led,OUTPUT);  
pinMode(buzzer,OUTPUT);  
pinMode(button,INPUT\_PULLUP);

lcd.init();  
lcd.backlight();

dht.begin();  
bmp.begin();  
}

void loop()  
{  
float temp = dht.readTemperature();  
float hum = dht.readHumidity();  
float pressure = bmp.readPressure()/100;

if(temp\>maxTemp) maxTemp=temp;  
if(temp\<minTemp) minTemp=temp;

// AUTO SCREEN CHANGE  
if(millis()-screenTimer\>3000)  
{  
screen++;  
if(screen\>9) screen=0;  
screenTimer=millis();  
}

lcd.clear();

// 1 WEATHER  
if(screen==0){  
lcd.print(“Temp:”);  
lcd.print(temp);  
lcd.print(“C”);  
lcd.setCursor(0,1);  
lcd.print(“Hum:”);  
lcd.print(hum);  
}

// 2 PRESSURE  
if(screen==1){  
lcd.print(“Pressure:”);  
lcd.setCursor(0,1);  
lcd.print(pressure);  
lcd.print(“hPa”);  
}

// 3 RAIN  
if(screen==2){  
lcd.print(“Rain Status”);  
lcd.setCursor(0,1);  
if(pressure\<1000 && hum\>75)  
lcd.print(“RAINING”);  
else  
lcd.print(“NO RAIN”);  
}

// 4 AIR QUALITY  
if(screen==3){  
lcd.print(“Air Quality”);  
lcd.setCursor(0,1);  
if(hum\<60) lcd.print(“GOOD”);  
else if(hum\<80) lcd.print(“MODERATE”);  
else lcd.print(“POOR”);  
}

// 5 DROUGHT  
if(screen==4){  
lcd.print(“Drought:”);  
lcd.setCursor(0,1);  
if(temp\>35 && hum\<40)  
lcd.print(“WARNING”);  
else  
lcd.print(“NORMAL”);  
}

// 6 EARTH WATER  
if(screen==5){  
lcd.print(“Earth Water”);  
lcd.setCursor(0,1);  
if(hum\>80) lcd.print(“HIGH”);  
else if(hum\>50) lcd.print(“NORMAL”);  
else lcd.print(“LOW”);  
}

// 7 MINING  
if(screen==6){  
lcd.print(“Mining:”);  
lcd.setCursor(0,1);  
if(temp\>36 && hum\<35)  
lcd.print(“DETECTED”);  
else  
lcd.print(“NORMAL”);  
}

// 8 WIND SPEED  
if(screen==7){  
float change = abs(pressure-oldPressure);  
lcd.print(“Wind Speed”);  
lcd.setCursor(0,1);

```auto
if(change<0.5)
  lcd.print("CALM");
else if(change<1.5)
  lcd.print("MODERATE");
else
  lcd.print("STRONG");

oldPressure=pressure;

```

}

// 9 DUST LEVEL  
if(screen==8){  
lcd.print(“Dust Level”);  
lcd.setCursor(0,1);

```auto
if(hum>70)
  lcd.print("LOelse if(hum>40)
  lcd.print("MEDIUM");
else
  lcd.print("HIGH");

```

}

// 10 MAX MIN TEMP  
if(screen==9){  
lcd.print(“Max:”);  
lcd.print(maxTemp);  
lcd.setCursor(0,1);  
lcd.print(“Min:”);  
lcd.print(minTemp);  
}

// ALERT SYSTEM  
if(temp\>35 || hum\>80){  
digitalWrite(led,HIGH);  
tone(buzzer,900);  
}  
else{  
digitalWrite(led,LOW);  
noTone(buzzer);  
}

delay(500);  
}

Principle:- It shows current temperature and humidity of air and also shows quality of air and pressure of it.

Component:- 1.Arduino uno , 2.lcd 16×2. ,3.display module,4.bread board,5.DTH11, and others.

P

 ![2166](https://canada1.discourse-cdn.com/flex029/uploads/scienceactivitycentreiiserpune/original/1X/59fbcc2a87fba4ebe7ad654dfc20df52ea9f8e28.jpeg)

---

<div class="post-metadata">

### Author: ![saciiserpune](https://yyz1.discourse-cdn.com/flex029/user_avatar/scienceactivitycentreiiserpune.discourse.group/saciiserpune/32/16_2.png) [@saciiserpune](https://scienceactivitycentreiiserpune.discourse.group/u/saciiserpune)
#### Post date: [February 27, 2026, 10:40am UTC](https://scienceactivitycentreiiserpune.discourse.group/t/micro-weather-station-table-no-2/244/2 "2026-02-27T10:40:48Z")

</div>

Add details about working .  
and team details.

---

<div class="post-metadata">

### Author: ![saciiserpune](https://yyz1.discourse-cdn.com/flex029/user_avatar/scienceactivitycentreiiserpune.discourse.group/saciiserpune/32/16_2.png) [@saciiserpune](https://scienceactivitycentreiiserpune.discourse.group/u/saciiserpune)
#### Post date: [February 27, 2026, 11:04am UTC](https://scienceactivitycentreiiserpune.discourse.group/t/micro-weather-station-table-no-2/244/3 "2026-02-27T11:04:04Z")

</div>

Approved for stage 2.  
Return the arduino and collect ESP.