Level 1_Stage 1) Gather Components: Arduino, DHT11 sensor, I2C LCD Display , Battery (9V), jumper wires, and 2 breadboards
Stage2) Connection of components
Stage 3) Coding
Code is as below-
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <DHT.h>
#define DHTPIN 2
#define DHTTYPE DHT11
#define BUZZER 9
DHT dht(DHTPIN, DHTTYPE);
// I2C Address usually 0x27 or 0x3F
LiquidCrystal_I2C lcd(0x27, 16, 2);
float temperature = 0;
float humidity = 0;
float heatIndex = 0;
void setup() {
pinMode(BUZZER, OUTPUT);
digitalWrite(BUZZER, LOW);
lcd.init();
lcd.backlight();
dht.begin();
lcd.setCursor(0,0);
lcd.print(“Weather Station”);
lcd.setCursor(0,1);
lcd.print(“Starting…”);
delay(2000);
lcd.clear();
}
void loop() {
temperature = dht.readTemperature();
humidity = dht.readHumidity();
if (isnan(temperature) || isnan(humidity)) {
lcd.clear();
lcd.print(“Sensor Error!”);
delay(2000);
return;
}
heatIndex = dht.computeHeatIndex(temperature, humidity, false);
lcd.clear();
lcd.setCursor(0,0);
lcd.print(“T:”);
lcd.print(temperature);
lcd.print((char)223);
lcd.print("C ");
lcd.print(“H:”);
lcd.print(humidity);
lcd.print(“%”);
lcd.setCursor(0,1);
lcd.print(“Feels:”);
lcd.print(heatIndex);
lcd.print((char)223);
lcd.print(“C”);
if (temperature > 35) {
digitalWrite(BUZZER, HIGH);
delay(300);
digitalWrite(BUZZER, LOW);
}
delay(2000);
}
Made by- Kaustubh Kulkarni( Aaryans World school, Gargi Pandekar (Abhinav Vidalaya),Rajdip Navle(Matayadosi Vidalay Ambad) and teacher Chitwan Brave ( St.Mary’s school
Experience- Learnt new things and very helpful volenteers
Level 2- We used the ESP32 and made the connections using the jumper wires on breadboards. Due to some software issues ESP32 software was not getting installed. We also made the code.