Technical Documents

LDR Sensor Working Principle (Electronics Tutorials) LDR Module with Arduino (CircuitDigest) Photoresistor (LDR) Technical Datasheet

EMS-00017-A

Name: LDR Module
Brand: Generic
SKU: EMS-00017-A
Availability: InStock

(Last updated) May 08, 2026

LDR Module

Light Dependent Resistor (LDR) Module

Description

The LDR Module detects ambient light intensity and provides a digital output based on brightness level. It features an onboard potentiometer to adjust sensitivity and threshold detection. Ideal for automatic lighting systems, Arduino projects, and light-based automation applications.

Manufacturer Details

Manufacturer	Part Number
EM Series / Generic Compatible	LM393 Based LDR Module
KEYESTUDIO	KS0033

Vendor Suppliers

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Application Resources

LDR Module Appnotes LDR Sensor with Arduino Tutorial

Technical Specifications

Model	Light Dependent Resistor Module
Operating Voltage (V)	3.3 – 5
Operating Current (mA)	15
Output Type	Digital (DO)
Adjustable Threshold	Yes (via Potentiometer)
Sensor Type	Photoresistor (LDR)
Mounting Hole	M3
Indicator LEDs	Power LED, Status LED
Pin Configuration	VCC, GND, DO
Length (mm)	36
Width (mm)	14
Height (mm)	8
Weight (g)	3
Shipping Weight	0.005 kg
Shipping Dimensions (L × W × H)	4 × 3 × 2 cm