wiring diagram
Code 1
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2);
int aVal=0,tempaVal=0;
void setup()
{
lcd.begin();
}
void loop()
{
aVal = analogRead(A0);
if (tempaVal != aVal)
{
lcd.clear();
lcd.setCursor(0,0);
lcd.print("LDR");
lcd.setCursor(0,1);
lcd.print(aVal);
delay(300);
}
tempaVal = aVal;
}
Code 2
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2);
int aVal=0,tempaVal=0;
void setup()
{
lcd.begin();
}
void loop()
{
aVal = analogRead(A0);
if (tempaVal != aVal)
{
lcd.clear();
lcd.setCursor(0,0);
lcd.print(aVal);
lcd.setCursor(0,1);
if (aVal<100)
lcd.print("Dark");
else
lcd.print("Light");
delay(300);
}
tempaVal = aVal;
}
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