Obstacle Detecting Walking Stick Quiz

What is the primary function of the obstacle detecting walking stick?

• To measure temperature changes

• To detect obstacles and alert the user

• To navigate using GPS

• To measure humidity levels

Which component is used to measure the distance to obstacles?

• Infrared sensor

• Light sensor

• Temperature sensor

• Ultrasonic distance sensor

What is the purpose of the buzzer in the walking stick project?

• To play music

• To provide an audible warning

• To measure distance

• To display visual alerts

How is the Arduino powered in the prototype setup?

• Using a power adapter

• Through a solar panel

• With a 9-volt battery

• Using a USB cable

What does the ultrasonic sensor measure to determine distance?

• Temperature changes

• Time taken for sound to return

• Sound frequency

• Light intensity

In the Arduino code, what happens when the distance is below the threshold?

• The buzzer beeps faster

• The LED lights up

• The display shows a message

• The motor starts

Which function is used to map the distance to buzzer delay in the Arduino code?

• delay

• analogRead

• map

• digitalWrite

What can be added to allow users to adjust the alarm threshold without editing the code?

• An LED

• A resistor

• A potentiometer

• A switch

What is one way to enhance the obstacle detection capability of the walking stick?

• Use a larger battery

• Add more ultrasonic sensors

• Add a second Arduino

• Increase the size of the breadboard

Where can you find additional resources and projects related to this tutorial?

• In the library

• In the hardware store

• In the Arduino IDE

• In the video description