Description: CdS cells are little light sensors. As the squiggly face is exposed to more light, the resistance goes down. When its light, the resistance is about ~1KΩ, when dark it goes up to ~10KΩ. 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. CdS photocells are not RoHS compliant, so if you need something equivalent but RoHS compiant, check out the photo transistor. For a full tutorial with wiring diagrams, code examples and project ideas, please !
Price: 3.49 USD
Location: Derry, New Hampshire
End Time: 2024-10-29T14:31:52.000Z
Shipping Cost: 4.49 USD
Product Images
Item Specifics
Restocking Fee: No
Return shipping will be paid by: Seller
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
Return policy details:
Brand: Adafruit
Type: PhotoCell
