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SMART CLOCK

Abijit Jayachandran, Aarav Vidhawan & Sougata Saha

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ECE SIPP 2022

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The ________ Problem

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What if…?

The “Waking” Problem

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Goals/Steps

  1. Create a functional “normal” alarm clock
  2. Detect if person is awake:
    1. Ultrasonic sensor
    2. OpenCV
  3. Ring the alarm at only appropriate times

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Parts Needed

  • 1 buzzer + 1 blinking LED

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  • 2 buttons

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  • Ultrasonic sensor

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  • Camera

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  • Photosensitive sensor

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5V & GND

Ultrasonic Sensor

Light Sensor

Speaker / Piezzo-buzzer

Snooze Button

Stop Button

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Ultrasonic Sensor

Light Sensor

Speaker / Buzzer

Stop Button

Snooze Button

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LCD display for the clock

Stop Button

Speaker

Snooze Button

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Flow of Code

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Set current time and alarm time

While loop till alarm time reached

Play sequence till snooze or stop is hit

Snooze:

Nothing for 10 min

Stop: Nothing for 5 mins

Look for face/object

Object found

Object not found

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Challenges

  • Not being able to use time.sleep()
    • time.monotonic()
  • OpenCV
    • Board integration
    • Haar Cascade for facial recognition

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Demo

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Future Improvements

  • Improve facial recognition
    • Be able to recognize the side and back of faces
    • Reliant on ultrasonic sensor at the moment
  • Have LCD display for time

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