Arduino millis() function: 5+ things to consider

This video tutorial explores the Arduino Millis function, explaining its role in accessing the internal timer counter hardware for event timing. It covers hardware clocks, timer counter modules, and how to retrieve and store values from the Millis function. The tutorial also discusses the importance of using the correct data types, such as unsigned long, to store large values returned by Millis, and provides precautions for performing calculations with these values.

What is the purpose of the Arduino Millis function?

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Explain what a hardware clock is in the context of Arduino.

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Describe the function of a timer counter module in Arduino.

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What is the maximum duration that the timer counter can count before rolling over?

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Discuss the significance of the term 'rolling over' in relation to the timer counter.

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How does the Millis function provide the current time in milliseconds?

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How can you retrieve the value from the Millis function in your code?

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What happens if you try to store a value from the Millis function in a variable that is too small?

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Why is it important to use an unsigned long data type for storing values from the Millis function?

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What precautions should be taken when performing math with unsigned long variables?

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