Arduino for Beginners - 2022 Complete Course - Activity 14 - Measure the Duration of the pulseIn() Function

The video tutorial explains how to measure the duration of a function using an ultrasonic sensor. It discusses the use of Millis and Micros functions to measure time in milliseconds and microseconds, respectively, highlighting the precision of Micros. The tutorial provides a recap on measuring time before and after an action to compute duration, and emphasizes understanding the execution time of specific lines of code. It concludes by directing viewers to revisit previous lessons for further understanding.

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

• To measure the distance to an object

• To measure the duration of a pulse

• To detect the color of an object

• To calculate the speed of sound

Which unit of time measurement offers more precision?

• Seconds

• Microseconds

• Milliseconds

• Nanoseconds

What should you do to compute the duration of an action?

• Measure the time after the action only

• Measure the time before and after the action and find the difference

• Use a stopwatch

• Estimate the time based on previous actions

What is the focus of the time measurement in this lesson?

• The time taken to initialize the sensor

• The time taken to complete the entire function

• The execution time of a specific line of code

• The duration of the signal received

What should you do if you are unsure about computing durations?

• Revisit the previous lessons on time functionalities

• Guess the duration

• Skip to the next lesson

• Ask a friend for help