For user interface, the following libraries are used for implementation:

• Preferences (ESP32)

11/8/2024 (Truong) - Preferences for Clock Menu

Pre-UI Requirements:

• For the situation that the clock loses power, data such as sleeping time, brightness, and time offset all need to be saved.
• To do this, the ESP32 S3 has an internal non-volatile flash, meaning that data can be stored even after power is cut off.
• sleepBud has a namespace called "config" which can be accessed in different R/W permissions (refer to Preferences library for more details).

6 items are stored in this namespace:

• (bool) timeUpdate: determines if clock updates time from NTP server at reboot
• (int) brightness: brightness value set by user for lamp
• (int) sleepHR: time of sleep hour
• (int) sleepMin: time of sleep minute
• (int) utcOffset: time offset for correcting UTC time to local time
• (bool) configInit: checks if namespace has been initialized on ESP32

Note: Alarm time is not saved on ESP32 flash, it is already saved on the RTC module.

11/14/2024 (Truong/Ameer)

Mode Selection

During normal operation, the plus and negative buttons will adjust the brightness of the lamps

These modes will be handled based on an interrupt service provider.

• Update from WiFi at bootup
• Setup manual time
• Turn on Alarm
• Set Alarm Time
• Set UTC offset
• Normal Mode

12/12/2024 (Truong/Ameer)

Implemented Modes

For 2 modes (setup manual time and set alarm time), the menu should display numbers that represent the time, and the user should be able to edit these values using the buttons (plus, minus, select).

For 2 modes (enable alarm and enable update from NTP) the menu should display a binary value that represents the state of that mode. Plus should make it one while minus makes it 0.