Digital LDR Module

Digital LDR Module – Arduino Compatible Light Sensor

The Digital LDR Module is a versatile ldr light sensor designed to detect the presence and intensity of light accurately. Many users compare total light dependent resistor price before ordering, and understanding the use of ldr sensor helps with threshold control. In addition, the behavior of a photo resistor ldr makes this module reliable for automation tasks. This LDR Module provides both digital and analog responses suitable for smart lighting, robotics, and light-sensitive systems. The output goes high when exposed to enough light and becomes low in dim conditions, allowing quick brightness detection.

Moreover, the sensitivity level can be easily adjusted using the onboard potentiometer, which helps you fine-tune trigger points. For example, you can automate lamps or regulate LED brightness indoors with stable performance. This makes integrating a photo resistor ldr into custom DIY builds simple and efficient.

The digital LDR Module is user-friendly. Because it provides a clear digital output, you can instantly determine the presence of light and react accordingly. An M3 mounting hole ensures secure positioning, and both power and status LEDs deliver helpful visual feedback during operation.

This module uses a Light Dependent Resistor (LDR) that responds consistently to changes in ambient brightness. As intensity increases, resistance drops for fast detection. Therefore, it is commonly integrated into automatic lighting, camera exposure, and solar-based automation. When ordering larger quantities, comparing light dependent resistor price while considering the long-term use of ldr sensor can reduce cost. Additionally, seasonal conditions further demonstrate how a photo resistor ldr performs under varied lighting.

How it Works:

1. When the surrounding light intensity reaches the set threshold, the D0 (digital output) pin goes HIGH.
2. If the light level falls below that threshold, the D0 pin outputs LOW.
3. The digital output (D0) can connect directly to an MCU or microcontroller such as Arduino, allowing detection of light intensity changes via simple HIGH/LOW logic.
4. This output can also directly drive a relay module, effectively creating a photoelectric switch for automated lighting or triggering systems.

Pin Details:
VCC → 3.3V to 5V DC
GND → Ground
DO → Digital Output

Technical Details – photo resistor ldr

Features

Applications – use of ldr sensor

Physical Attributes

Package Includes