Arduino for Beginners - 2022 Complete Course - Activity 15 - Power On a Different LED Depending on the Distance from an

The video tutorial explains how to read data from an ultrasonic sensor and use it to control LEDs based on distance measurements. It covers setting up a circuit with three LEDs that indicate different proximity levels to obstacles. The tutorial also includes a programming task where viewers are encouraged to write a program from scratch to read ultrasonic distance using interrupts and implement the LED functionality.

What is the primary purpose of using an ultrasonic sensor in this project?

• To detect light intensity

• To measure temperature

• To control motor speed

• To measure distance

Which LED is powered on when the distance is greater than 1 meter?

• Green LED

• Yellow LED

• Red LED

• Blue LED

What distance range triggers the yellow LED to turn on?

• Greater than 100 cm

• Between 15 cm and 100 cm

• Less than 15 cm

• Exactly 1 meter

What action is suggested when the red LED is powered on?

• No action needed

• Increase speed

• Turn off the system

• Take evasive action

What is recommended for students to do after learning the concepts in this lesson?

• Memorize the code

• Start from scratch and code the solution independently

• Ignore the lesson

• Copy the solution from the video