Video 9: Using GPIO Pins for PWM to Simulate Analog Output

This video guides you through the basics of PWM (Pulse Width Modulation) using the Raspberry Pi GPIO pins, demonstrating LED brightness control and real-time frequency adjustment.

1. Introduction to PWM and its role in simulating analog signals.

2. Understanding duty cycle and its significance in PWM signals.

3. Hands-on demonstration of LED brightness control using PWM with Raspberry Pi GPIO pins.

4. Utilizing an oscilloscope to visualize PWM signals, verifying duty cycle and frequency.

5. Explanation of frequency and its impact on PWM signals.

6. Real-time demonstration of changing duty cycle and frequency using Python commands in the Raspberry Pi terminal.

7. Homework assignment involving precise LED brightness control using push buttons, fostering hands-on learning and experimentation.

8. Importance of GPIO pins in controlling various components such as LEDs, motors, and sensors.

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