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Lesson 10: Controlling a Dimmable LED with a Potentiometer

This tutorial covers controlling LED brightness using PWM on the Raspberry Pi Pico W:

  • LED Brightness Control: Explains how PWM controls LED brightness by varying duty cycles.

  • Wiring Diagram and Setup: Detailed diagram for connecting an LED with a 220 Ohm resistor to the Pico W.

  • Code Explanation: Code setup for PWM, converting user input to the corresponding duty cycle.

  • Practical Demonstration: Visualizing PWM signals using an oscilloscope to show different duty cycles.

  • Homework Assignment: Create a circuit to control LED brightness using a potentiometer and PWM.

Video