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photoresistance detection Optical Photosensitive light sensor module for Arduino

80 % of buyers enjoyed this product!
In stock
Sale Price: US $0.77
45 days Money back
45 days Money back Returns accepted if product not as described, buyer pays return shipping; or keep the product & agree refund with seller.
On-time Delivery
On-time Delivery
Guarantees: On-time Delivery 60 days


NOTE: The China Post Ordinary Small Packet Plus is now count from 30g weight, we will add $0.5 Shipping Fee until we found a better ship method. Please understand, and Please ignore this note if your order is bigger than $25 or weight over 30g.

  • Comparator chip LM393 ,it is stable.
  • Can detect the ambient brightness and light intensity
  • Accuracy adjustable
  • Operating voltage 3.3V-5V
  • Output: DO digital switch outputs (0 and 1) AO analog voltage output
  • power indicator and digital switch output indicator
  • With a mounting screw hole
  • PCB size: 3.1cm * 1.5cm

Interface Description (4-wire):

1 VCC — 3.3V-5V voltage
3 DO — board digital output interface (0 and 1)
4 AO — board analog output interface


  • This module is sensitive to the light, Usually used for detecting the ambient brightness and light intensity.
    When there is no light or the light intensity can not reach the value,DO output is high level.when light intensity over than the value, the module DO output is low level.
  • The module digital output DO can be directly connected with the microcontroller,use microcontroller detect high or low level, so that can detect the environmental light intensity change.
  • Can use this board digital output DO port drive relay module directly(our store on sale these relay modules), can use as a photoelectric switch.
  • The analog output AO connect with AD module,it can get more precise light intensity value through the AD converter.

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Shipping Company Shipping Cost Estimated Delivery Time
DHL 3 - 7 days
UPS Expedited 3 - 7 days
EMS 5 - 14 days
Post Air Mail Free Shipping 15 - 45 days
Return Policy If the product you receive is not as described or low quality, the seller promises that you may return it before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe) and receive a full refund. The return shipping fee will be paid by you. Or, you can choose to keep the product and agree the refund amount directly with the seller.

N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion.
Seller Service On-time DeliveryIf you do not receive your purchase within 60 days, you can ask for a full refund before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe).

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Price:  US $0.77 / piece