Photo-Resistor Sensor (LDR Large)

Overview

Illuminate your projects with the MOKWN Photo-Resistor Sensor (LDR Large) – a reliable and responsive light-dependent resistor designed for accurate ambient light detection. This large-format LDR changes its resistance based on the intensity of light falling on its surface, making it an essential component for light-sensitive applications. Whether you're building a smart lighting system, a solar tracker, or an automatic night lamp, this sensor provides a simple and cost-effective solution for measuring light levels. Its large size ensures greater sensitivity and easier handling, ideal for breadboard prototyping and permanent installations.

Key Features

• Large LDR Element: Enhanced surface area for improved light sensitivity and response.
• Wide Resistance Range: Varies from ~1kΩ in bright light to ~10kΩ in darkness, providing clear signal changes.
• High Voltage Tolerance: Rated up to 150V, suitable for various control circuits.
• Compact Dimensions: Measures 2 x 10 x 12mm, with a 31mm lead length for easy integration.
• Standard Pin Spacing: 10mm pitch, compatible with breadboards and standard headers.
• Durable Construction: Designed for reliable performance in DIY and educational projects.

Technical Specifications

• Max Power: 200mW
• Dimensions: 2 x 10 x 12mm
• Lead Length: 31mm
• Max Voltage: 150V
• Pin Spacing: 10mm
• Dark Resistance: ~10kΩ
• Light Resistance: ~1kΩ

Applications & Use Cases

• Automatic Lighting Systems: Create night lamps, street lights, or garden lights that turn on at dusk and off at dawn.
• Solar Trackers: Adjust solar panels to follow the sun's path by detecting light intensity.
• Security Systems: Build light-sensitive alarms or motion-triggered devices.
• Photography & Exposure Meters: Measure ambient light for camera or studio setups.
• Educational Projects: Teach students about resistance, sensors, and electronics in STEM classrooms.
• Smart Home Automation: Integrate with Arduino or ESP32 to control blinds, curtains, or lighting based on natural light.

What's Included

• 1x Photo-Resistor Sensor (LDR Large)

Compatibility

• Arduino: Works with all Arduino boards (Uno, Nano, Mega, etc.) using analog input pins.
• ESP32/ESP8266: Easily read analog signals for IoT applications.
• Raspberry Pi: Use with an ADC (e.g., MCP3008) for digital reading.
• Other Microcontrollers: Compatible with any MCU that has analog input capability.
• Breadboards: Pin spacing fits standard breadboards and prototyping boards.

MOKWN Recommendation

For optimal performance, use the LDR in a voltage divider circuit with a fixed resistor (e.g., 10kΩ). This configuration converts the changing resistance into a readable voltage for your microcontroller. Pair this sensor with MOKWN's range of resistors, jumper wires, and Arduino starter kits to kickstart your light-sensing projects today!