Arduino alarm clock

Simple alarm clock on arduino uno shows the current time, plays the melody at the specified time and also saves the settings when the power is turned off.

Project page on my website: https://arduino-technology.ru/projects/alarm-clock/

Used components:

• arduino uno: 1 2 3
• 7-segment display on ТМ1637 driver: 1 2 3
• real time clock DS1307: 1 2 3
• battery CR2032: 1 2
• speaker: 1 2 3
• buttons: 1 2 3
• resistors: 1 2 3
• breadboard: 1 2 3
• cables: 1 2 3