Time Reminder Using Arduino with Sleep Function

Time Keeper with Sleep Function for Arduino Nano

This project creates a time keeper with an alarm function and sleep option using an Arduino Nano, DS1307 RTC module, LCD module, battery, breadboard, and 4 pushbuttons.

Components:

• Arduino Nano
• DS1307 RTC Module
• LCD Module (size and connection type depend on your choice)
• Battery (appropriate voltage for your LCD)
• Breadboard
• 4 Pushbuttons (Select, Up, Down, Enter)
• Buzzer

Functionality:

• Users can set 8 different time intervals in 24-hour format.
• When the current time matches a predefined stored time, the buzzer will sound for 60 seconds.
• Pressing the “Sleep” button during the alarm will mute the buzzer and display “Yes” on the LCD.
• If the sleep button isn’t pressed within 60 seconds, the buzzer will automatically turn off, and the LCD remains blank.

Customization:

This project can be customized with additional features, such as:

• Displaying the current time continuously
• Setting labels for each alarm slot
• Snooze button functionality (reactivate the alarm after a short delay)
• Multiple alarm melodies

Here’s a general outline to get you started (code will vary depending on your specific LCD module):

1. Include Libraries: Include libraries for the DS1307 RTC and LCD module.
2. Pin Setup: Define pins for buttons, buzzer, LCD connections (data, control, backlight, etc.).
3. Time Variables: Create variables to store current time, set times, and alarm status.
4. Button Reading: Use digitalRead() to check button presses (select, up, down, enter).
5. Setting Time: Implement logic for setting 8 different times using select, up, down, and enter buttons. Update RTC with the selected time.
6. Timekeeping: Regularly check the current time (read from RTC) and compare it with stored alarm times.
7. Alarm Activation: If a match is found, activate the buzzer and display message on LCD.
8. Sleep Button: Check for sleep button press during the alarm. If pressed, turn off buzzer and display “Yes” message.
9. Automatic Alarm Deactivation: If the sleep button isn’t pressed within 60 seconds, turn off the buzzer and clear the LCD display.

Remember: This is a basic outline. You’ll need to write code to handle specific functions and integrate the libraries for your chosen components.

For in-depth coding assistance, consider searching online forums and communities dedicated to Arduino programming. They can provide code examples and troubleshooting help tailored to your specific hardware setup.