LDR SENSOR
Rs. 29.50
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LDR SENSOR
Rs. 29.50
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The LDR (Light Dependent Resistor) Sensor Module uses an LM393 voltage comparator to detect ambient light intensity. Outputs both a digital (D0, threshold-based HIGH/LOW) and an analog (A0, proportional voltage) signal. Adjustable sensitivity via onboard potentiometer. 3.3–5V compatible. LED indicator shows digital output state. Mounting hole for easy installation.
Pin Configuration:
- VCC — 3.3–5V power supply
- GND — Ground
- D0 — Digital output (HIGH/LOW based on threshold)
- A0 — Analog output (proportional to light intensity)
Specifications:
- Comparator IC: LM393
- Operating Voltage: 3.3–5V
- Output: Digital + Analog
- Sensitivity: Adjustable via potentiometer
Applications:
- Automatic light switches (day/night detection)
- Ambient light sensing for IoT projects
- Relay control based on brightness
- Arduino and Raspberry Pi light-sensing projects
