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Lesson 9: Getting Analog Output Using PWM (Pulse Width Modulation)

This tutorial covers generating analog output using PWM on the Raspberry Pi Pico W:

  • Analog Output Explanation: Explains PWM and how it simulates analog output by adjusting duty cycles.

  • GPIO Pin Configuration: Describes which GPIO pins can generate PWM and the importance of not using overlapping PWM labels.

  • Circuit Setup and Code: Provides a wiring diagram and code to set up PWM, take voltage input, and convert it to a PWM duty cycle.

  • Practical Demonstration: Shows how to measure PWM signals with an oscilloscope to visualize different duty cycles.

  • Homework Assignment: Create a circuit to control LED brightness using user-input voltage and PWM.

Video