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LESSON 12: Read Analog Voltages on the Arduino

This lesson explores how to read analog voltages using the Arduino, expanding upon previous lessons on digital and analog outputs. Here’s a brief overview of what you will learn:

  1. Introduction to Analog Reading: Understand the basic principles of reading analog voltages with the Arduino, emphasizing the importance of not exceeding the 5-volt input limit to avoid damage.

  2. Using a Potentiometer: Learn how to use a potentiometer to create a variable voltage source that can be read by the Arduino, demonstrating the setup through a practical circuit-building exercise.

  3. Practical Application and Circuit Building: Follow step-by-step instructions to build a circuit that includes a potentiometer and how to connect it to the Arduino for reading voltage variations.

  4. Coding for Analog Reading: Dive into the code required to read and interpret analog voltages, including setting up the Arduino sketch to display these voltages.

  5. Homework Assignment: Solidify your learning by adjusting the potentiometer to change the LED brightness linked to the voltage read by the Arduino, reinforcing the concepts of analog input and output.

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