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Light/Photosensitive (LDR) Sensor Module

(30 customer reviews)

Out of stock

Rs 170.00 Rs 200.00

Out of stock

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Weight 10 g

The LDR Sensor Module is used to detect the presence of light / measuring the intensity of light. The output of the module goes high in the presence of light and it becomes low in the absence of light. The sensitivity of the signal detection can be adjusted using potentiometer.


  • Can detect ambient brightness and light intensity
  • Adjustable sensitivity (via blue digital potentiometer adjustment)
  • Operating voltage 3.3V-5V
  • Output Type

Digital switching outputs (0 and 1) -D0

  • With fixed bolt hole for easy installation
  • Small board PCB size: 3cm * 1.6cm
  • Power indicator (red) and the digital switch output indicator (green)
  • Using LM393 comparator chip, stable

Pin outs:-

  • External 3.3V-5V VCC
  • External GND GND
  • DO digital output interface, a small plate (0 and 1)

How to use:-

  • Photosensitive resistor module most sensitive to environmental light intensity is generally used to detect the ambient brightness and light intensity.
  • Module light conditions or light intensity reach the set threshold, DO port output high, when the external ambient light intensity exceeds a set threshold, the module D0 output low;
  • Digital output D0 directly connected to the MCU, and detect high or low TTL, thereby detecting ambient light intensity changes;
  • Digital output module DO  can directly drive the relay module, which can be composed of a photoelectric switch;

Based on 30 reviews

4.8 overall

Only logged in customers who have purchased this product may leave a review.

  1. Sandun Herath (verified owner)

    Sandun Herath

  2. Aruni Rachithra (verified owner)

    Aruni Rachithra

  3. Lalith Perera (verified owner)

    good item

    Lalith Perera

  4. Ajith de Silva (verified owner)

    Ajith de Silva

  5. Jude Romlas (verified owner)

    Jude Romlas

  6. Kasun (verified owner)


  7. Vijikaran Shanmugabavan (verified owner)

    Review for Light/Photosensitive (LDR) Sensor Module
    ★ ★ ★ ★ ★

    Vijikaran Shanmugabavan

  8. Nishantha Rathnayake (verified owner)

    Nishantha Rathnayake

  9. W M C Jayamangala Wijesuriya (verified owner)

    W M C Jayamangala Wijesuriya

  10. Izam Niyas (verified owner)

    Izam Niyas