A component with a resistance value dependent on the lighting conditions. That means more light shines onto it, less resistance it has and if there is a motor in the circuit for example, it can run faster.
If you block the light shining on the photo-resistor with your finger, its resistance is going to increase greatly and the motor will stop spinning. You can use this component to create many interesting and experimental circuits.
- 1x Board with a Photo-resistor
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