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LDR photo resistor

₹29₹5042% OFF

Component Technical Specifications

LDR (Light Dependent Resistor) Module is a fundamental sensor for engineering students and makers, used to detect ambient light levels. These modules typically use a photoresistor whose resistance decreases as light intensity increases. They are essential for projects like automatic street lights, solar trackers, and night-vision triggers.

Operating Voltage3.3V to 5V DC, compatible with most modern development boards.

Output FormatDual Output—Digital (0 and 1) and Analog (AO).

SensitivityAdjustable via an onboard potentiometer.

Comparator ChipUses the LM393 for clean, stable digital signals with high driving capability (>15mA).

Spectral PeakTypically around 540nm, closely matching the human eye's sensitivity.

DimensionsCompact PCB footprint, usually around 3.2cm x 1.4cm.

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