Photoresistor

  • Availability: In Stock (40)
  • KWD 0.75
+ -

To use, connect one side of the photo cell (either one, its symmetric) to power (for example 5V) and the other side to your microcontroller's analog input pin. Then connect a 10K pull-down resistor from that analog pin to ground. The voltage on the pin will be 2.5V or higher when its light out and near ground when its dark.

For a full tutorial with wiring diagrams, code examples and project ideas, please read the photocell tutorial page!

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