Smart sleep/wakeup system

• Set time process:

  • Use potentiometer to set time
  • Use buttons to set time category
  • Select choices with buttons based on cycle offset

• Set alarm sequence:

  • Calculate sleep cycle (90 mins per cycle)
  • Set phone to Do Not Disturb mode
  • Give user choices of when to wake up (based on time after last cycle):
    • Less than 30 mins: set Wake Up Sequence at 15 mins before last cycle
    • More than 30 mins: set Wake Up Sequence at either 30 mins before alarm time or same as < 30 mins
    • None: set Wake Up Sequence at 30 mins before alarm time
    • No cycle: only set alarm at alarm time

• Wake up sequence:

  • Then play natural sounds (birds, waves, etc)
  • Gradually increase the volume of the sound (30 mins before wake up, 2% each to 60 percent max)
  • Then let the alarm go off at 100% volume after natural sounds

• Optional:

  • Use temperature sensor to read the temperature of the room, then adjust the AC accordingly
  • Use ultrasound sensor to detect if the user woke up before the alarm went off, then reset sleep cycle

Hardware

• Required:

  • Arduino Uno R3
  • 16x2 LCD
  • Buttons
  • Bluetooth HC-05
  • Potentiometer

• Optional:

  • Continuous Rotation Servo
  • Temperature sensor
  • Ultrasound sensor
  • IR sensor
  • IR blaster

Challenges

• Play audio on phone
• Set phone to Do Not Disturb mode
• Update time in real time
• Minimize Potentiometer noise
• Blink
• Minimize use of delay()
• Get current time using bluetooth