LDR Sensor Module 3 Pin

Overview of this 3 pin ldr Sensor module

Features:-

Light-sensitive – It detects changes in ambient light using an LDR (Light Dependent Resistor).

3-pin connection – Includes VCC, GND, and OUT for easy connection to microcontrollers.

Adjustable sensitivity – Some versions have a built-in potentiometer to fine-tune light detection.

Digital output – Sensor gives a HIGH or LOW signal based on light intensity.

Works in various lighting conditions – Reliable in both indoor and outdoor environments.

Long life – Solid-state design with no moving parts, making it durable.

Specification

Model: 3-Pin LDR Sensor Module

Operating Voltage: 3.3V – 5V

Output Type: Analog

Sensing Method: Photoresistor (LDR – Light Dependent Resistor)

Sensitivity: High

Sensing Range: Depends on ambient light conditions

Response Time: Less than 5 milliseconds

Dimensions: Varies depending on model

Pinout: VCC, GND, Analog Output

Application: Light intensity measurement

Use Case 1: Automatic lighting control

Use Case 2: Light-activated alarms and systems

Power Compatibility: Compatible with Arduino, Raspberry Pi, etc.

Module Type: Ready-to-use breakout board

SKU: RW-030

Pin outs:-

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

How to use:-

• Photosensitive resistor module most sensitive to environmental light intensity is generally use 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;
• Analog output module AO and AD modules can be connected through the AD converter, you can get a more accurate light intensity value