Password based circuit breaker
ARDUINO LIBRARY
KEYPAD --> Click here to download
LIQUIDCRYSTAL_I2C -->Click here to Download
CODE OF I2C SCANNER
I2C ADDRESS
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(----TYPE THE ADDRESS OF YOUR MODULE----, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE);
CODE OF PROJECT