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161

Accessory Type:Photo Cell

ADAFRUIT 161

The actual product may differ from image shown

Manufacturer:
ADAFRUIT ADAFRUIT
Manufacturer Part No:
161
Newark Part No.:
54W2650
Technical Datasheet:
161   Datasheet
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Technical Docs (1)

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CAD Models - Notice
CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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Product Overview

The 161 Cds(cadmium-sulphide) photoresistor is a tiny LED sensor device that changes light intensity due to change in resistance. To use, connect one side of the photo cell to power and the other side to microcontroller analogue input pin. Then connect a 10K pull down resistor from analogue pin to ground. The voltage on the pin will be 2.5V or higher when it light out and near ground when it is dark.
  • Dimension is 4.46mm x 5mm x 2.09mm (L x W x H)
  • Resistance is 200KΩ in dark and 5 to 10KΩ in light
  • CdS cells respond to light wavelength of 400nm (violet), 600nm (orange), 520nm (green).

Applications

Sensing & Instrumentation, Consumer Electronics, Portable Devices

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