Light Sensitive LDR Relay Module 5V
The Light Sensitive LDR Relay Module 5V is a self-contained switching solution that uses an LDR sensor mounted on a 10-inch lead to detect ambient light levels and automatically energize or de-energize a relay at a user-adjustable threshold. It operates from a 5 V supply and includes both normally open (NO) and normally closed (NC) contacts for versatile use. The onboard LM393 comparator and indicator LED provide clear operation feedback. The potentiometer allows fine-tuning of the brightness trip point, and protection components such as a flyback diode and reverse polarity diode ensure reliable performance.
Features
- Automatically controls the relay based on ambient light intensity.
- Includes an LDR sensor with a 10″ lead for remote light detection.
- Adjustable threshold via potentiometer for customizable light sensitivity.
- Supports switching of 115/230 VAC or 0–15 VDC loads at up to 10 A.
- Provides both NO and NC relay contacts for flexible output configuration.
- Indicator LED lights when the relay is energized.
- Operates on a 5V power supply.
- Includes flyback and reverse-polarity protection diodes for safe operation.
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