sir i am making a project using at89c51 eeprom 24c02, 4×4 keyboard and 16×2 lcd
sir in our project we are going to use eeprom to store the data of the money (recharging process) once it been done we will use it in place of cash and the amount pressed from the keyboard will get deducted from eeprom nd balance will be dispalyed on lcd same will be the recharging process