Light Intensity

Detailed Explanation of STM32 ADC – Practical Application of Light Intensity

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Detailed Explanation of STM32 ADC - Practical Application of Light Intensity

1.Hardware Introduction The photoresistor is a special resistor made from semiconductor materials such as sulfide or selenide, and its working principle is based on the internal photoelectric effect. As the light intensity increases, the resistance value rapidly decreases. The charge carriers generated by the light participate in conduction and drift under the influence of an … Read more

Exploring the Relationship Between Photoresistor Current and Light Intensity Using Phyphox and ESP32 Bluetooth

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Exploring the Relationship Between Photoresistor Current and Light Intensity Using Phyphox and ESP32 Bluetooth

Recently, we conducted an experiment to explore the relationship between the current of a photoresistor and light intensity. The photoresistor and a voltage divider resistor were connected in series, powered by the 5V output of the ESP32. We used pin IO33 to collect the voltage across the voltage divider resistor and calculated the current through … Read more