LESSON 3: Potentiometers and the Serial Monitor

Potentiometers are important components for unlocking more functionality from your projects. It’s a variable resistor whose resistance depends on the position of the knob. You can use them to adjust the volume of a speaker, brightness of an LED, speed of a motor and so much more. We’ll also begin using the Arduino IDE Serial Monitor to read values coming from our potentiometer. We often need to see real-time readings from sensors and other components that interact with the environment and the Serial Monitor is an easy way to do this right in the Arduino software. But perhaps more important, the serial monitor is a valuable troubleshooting tool for both components and code. After reading values, we’re going to turn it around and allow users to control what actions the Arduino performs with user input in the Serial Monitor.

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LESSON CONTENT:

1. Potentiometers
2. Analog Pins & ADC Values
3. Using the Serial Monitor to Read Values
4. Performing actions based on user input with the Serial Monitor
5. Introduction to Loops
6. Assignment

MATERIALS:

You’ll be able to follow along and build all the projects featured in this course with the ELEGOO UNO Project Super Starter Kit.

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