automatic schoolbell

This project will help you manage your schedule and act accordingly automatically. I need to set the instructions soon. Then it will work accordingly. Press the first button to set the number of periods. The entered data can be checked on the LCD screen. You can set any number of periods. Use the final push button to confirm the period and set the time for each period with these cool Arduino mini projects. Two other push buttons allow you to increase or decrease the time. The time displayed on the LCD is shown in seconds. Then check the time and the timer will start on the LCD. When the time is up, the buzzer will start ringing. You can read more about how push buttons work with Arduino here.