# Arduino Lesson 8. Analog Inputs ## Overview In this lesson, you will start by using the Serial Monitor to display analog readings, and then extend the project using eight LEDs from lesson 4, so that you can control the number of LEDs that are lit by turning the knob on a variable resistor. ![](https://cdn-learn.adafruit.com/assets/assets/000/002/240/medium800/learn_arduino_overview.jpg?1396780856) - [Next Page](https://learn.adafruit.com/adafruit-arduino-lesson-8-analog-inputs/parts.md) ## Featured Products ### Breadboard trim potentiometer [Breadboard trim potentiometer](https://www.adafruit.com/product/356) These are our favorite trim pots, perfect for breadboarding and prototyping. They have a long grippy adjustment knob and with 0.1" spacing, they plug into breadboards or perfboards with ease. This is the same pot that comes with our character LCDs and tutorial... 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