Video 30: Using a Photoresistor to Detect Light on the Raspberry Pi

Learn how to incorporate a photoresistor into your Raspberry Pi projects to measure light intensity and control actions based on brightness.

1. Introduction to the photoresistor: Learn how a photoresistor’s resistance changes with light intensity.

2. Physics behind the photoresistor: Understand the solid-state physics principles underlying the photoresistor’s operation.

3. Building the circuit: Discover how to create a voltage divider circuit using a photoresistor and a load resistor.

4. Programming the Raspberry Pi: Write Python code to read analog values from the photoresistor using the ADC0834 module.

5. Testing the circuit: See how the circuit responds to changes in lighting conditions, demonstrating changes in resistance and voltage.

6. Practical applications: Explore potential uses of photoresistors in projects such as automatic lighting systems.

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