Photoresistor Light Detection Sensor

Dual Output Signal Processing: Features both an Analog Output (AO) pin for continuous light level tracking and a Digital Output (DO) pin for simple threshold switching.

Onboard Potentiometer Calibration: Outfitted with an adjustable multi-turn trimmer to quickly calibrate light sensitivity and set custom digital trigger points.

LM393 Voltage Comparator IC: Employs an LM393 comparator to provide clean, noise-resistant digital logic signals with high driving capability.

Dual LED Telemetry Indicators: Includes an onboard power indicator LED and a digital switching status LED for effortless visual debugging during circuit testing.

Standard 3-Pin / 4-Pin Breadboard Header: Easily connects to microcontrollers via standard 0.1'' (2.54 mm) header pins for rapid breadboard prototyping.

Housing & Board Material: High-grade FR-4 glass-epoxy PCB with a light-sensitive CdS photoresistor element and tinned header pins.

Technical Specifications:

Operating Supply Voltage: 3.3V - 5.0V DC.

Output Signal Types: Analog Voltage Output (AO) + Digital Switching Output (DO).

Color: Blue PCB with Blue/White Potentiometer.

Usage Advice: Connect VCC (3.3V-5V) and GND to your controller; wire AO to an analog ADC pin for continuous light tracking, or DO to a GPIO pin for darkness threshold detection.

Maintenance: Keep the photoresistor bulb clear of dust, oil, or moisture; gently clean the sensor surface with a dry cotton swab if obstructed.

Essential Prototyping Light Sensor: Position as a versatile, low-cost optical sensor for automatic nightlights, solar tracking platforms, smart curtain triggers, and security alarms.

Highlight Analog & Digital Dual Capability: Emphasize how dual AO and DO outputs allow beginners and advanced developers alike to handle basic digital threshold triggering or detailed analog light logging.

Recommended Cross-Sell Add-ons: Pair with 4Pin Photoresistor Light Detection Sensor, GY-30 BH1750FVI Digital Light Intensity Illumination Sensor Module, 5V Photoelectric Resistor Relay Module, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Light Sensor Module collection page as your standard 3-pin/4-pin LDR light detection breakout board.