DIY – UV Index Detector Device – Arduino – Full Code

Items Needed:

1. Arduino UNO
2. UV Sensor Module
3. LCD 2 Lines with i2c module
4. Jumper Wires Male – Female
5. Lamp 1090

Code:

#include "LCD.h"
#include <LiquidCrystal_I2C.h>

#define I2C_ADDR    0x27 // <<----- Add your address here.  Find it from I2C Scanner
#define BACKLIGHT_PIN     3
#define En_pin  2
#define Rw_pin  1
#define Rs_pin  0
#define D4_pin  4
#define D5_pin  5
#define D6_pin  6
#define D7_pin  7


LiquidCrystal_I2C  lcd(I2C_ADDR,En_pin,Rw_pin,Rs_pin,D4_pin,D5_pin,D6_pin,D7_pin);



void setup() {
  // initialize serial communication at 9600 bits per second:
  Serial.begin(9600);

  lcd.begin(20,4);
  lcd.setBacklightPin(BACKLIGHT_PIN,POSITIVE);
  lcd.setBacklight(HIGH);
  lcd.setCursor(0,0);  

  lcd.setCursor(0,0);
  lcd.print("C.B.ELECTRONICS");
  delay(500);
  lcd.setCursor(0,1);
  lcd.print("Lebanese Park");
  delay(500);
    lcd.clear();

}

// the loop routine runs over and over again forever:
void loop() {
  // read the input on analog pin 0:
  int sensorValue = analogRead(A0);
  Serial.println(sensorValue);
  lcd.setCursor(0,0);
  lcd.print(sensorValue);
  lcd.setCursor(0,1);
  lcd.print("UV Index: ");
  if(sensorValue<10)
  {
    lcd.print(0);
  }
  else if (sensorValue<46)
  {
    lcd.print(1);
  }
  else if (sensorValue<65)
  {
    lcd.print(2);
  }
  else if (sensorValue<83)
  {
    lcd.print(3);
  }
  else if (sensorValue<103)
  {
    lcd.print(4);
  }
  else if (sensorValue<124)
  {
    lcd.print(5);
  }
  else if (sensorValue<142)
  {
    lcd.print(6);
  }
  else if (sensorValue<162)
  {
    lcd.print(7);
  }
  else if (sensorValue<180)
  {
    lcd.print(8);
  }
  else if (sensorValue<200)
  {
    lcd.print(9);
  }
  else if (sensorValue<221)
  {
    lcd.print(10);
  }
  else if (sensorValue>221)
  {
    lcd.print(11);
  }
  delay(1000);
  lcd.clear();
}