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Lesson 12: Create a Dimmable LED in Micropython

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

• LED Brightness Control: Explains controlling brightness with PWM and introduces exponential scaling for smoother brightness perception.

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

• Code Explanation: Code setup for PWM, reading analog values from the potentiometer, and converting them to PWM duty cycles.

• Practical Demonstration: Shows how to visualize PWM signals with an oscilloscope and demonstrates the effect of exponential scaling on brightness transitions.

Video