The Complete Beginners Guide to Arduino - 2021 - Blink 3 LEDs - Using Millis

This tutorial explains how to use the Millis function in Arduino to control the blinking of three LEDs at different intervals without using delay functions. It covers the setup of arrays to store timer and state information, the implementation of a for loop to manage LED states, and the logic behind using Millis to track time intervals. The video also includes a detailed code walkthrough and demonstrates the execution of the program on an Arduino board.

What is the purpose of the Millis command in Arduino?

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Explain how the Millis counter works when the Arduino is powered on.

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How can you control the speed of blinking LEDs using the Millis counter?

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Describe the significance of using an unsigned long data type for the Millis counter.

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What happens to the Millis counter after 49 days of operation?

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How do you declare an array to store the states of the LEDs?

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How does the frequency array affect the blinking pattern of the LEDs?

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What is the role of the for loop in setting the output states of the LEDs?

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What is the purpose of storing the time when an LED state changes?

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Explain how the state of an LED is toggled based on the Millis counter.

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