Components Required
Code
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#include <LiquidCrystal.h>
const int rs = 7, en = 6, d4 = 5, d5 = 4, d6 = 3, d7 = 2;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);
int j=0;
int prev=0;
int pres=0;
void setup()
{
lcd.begin(16, 2);
lcd.setCursor(0,0);
lcd.print(" Soil Moisture ");
Serial.begin(9600);
}
void loop()
{
j=analogRead(A0);
j=map(j,0,982,148,0);
pres=j;
if(j>100)
j=100;
else if(j<0)
j=0;
lcd.setCursor(6,1);
lcd.print(j);
lcd.print("% ");
Serial.println(j);
prev=j;
delay(500);
} 
