Study for the Internet of Things (IOT102) Test. Access comprehensive flashcards and multiple choice questions, each with hints and explanations. Get prepared for your exam!

Multiple Choice

Which Arduino function is commonly used to pause execution for a short period?

Pausing program flow in Arduino sketches is typically done with a blocking delay. The delay function stops the sketch for the number of milliseconds you specify, then the program continues. For example, delay(500) pauses for half a second. This is the standard way to create short, predictable pauses—useful for things like blinking an LED at a steady rate or spacing actions in time. The other functions perform different tasks: starting serial communication, setting a pin high or low, or reading an analog input. They don’t pause the program by themselves. If you need to wait while keeping the rest of the program responsive, you’d use a non-blocking approach with millis(), but for a simple, short pause, delay is the common choice.

Pausing program flow in Arduino sketches is typically done with a blocking delay. The delay function stops the sketch for the number of milliseconds you specify, then the program continues. For example, delay(500) pauses for half a second. This is the standard way to create short, predictable pauses—useful for things like blinking an LED at a steady rate or spacing actions in time.

The other functions perform different tasks: starting serial communication, setting a pin high or low, or reading an analog input. They don’t pause the program by themselves. If you need to wait while keeping the rest of the program responsive, you’d use a non-blocking approach with millis(), but for a simple, short pause, delay is the common choice.