5mm Photosensative LDR sensor

5mm Photosensitive LDR Sensor detects light intensity and changes resistance according to ambient light. Ideal for automatic light control, streetlight projects, and Arduino-based automation systems.

Technical Specifications:

1. Type: Photoresistor (LDR)
2. Diameter: 5mm
3. Operating Voltage: 3V – 5V (typical for interfacing)
4. Spectral Peak: 540nm
5. Light Resistance: 5–10 kΩ (under 10 lux)
6. Dark Resistance: > 1 MΩ
7. Response Time: 20ms (Rise), 30ms (Fall)
8. Operating Temperature: -30°C to +70°C

The 5mm Photosensitive LDR (Light Dependent Resistor) Sensor is a light-sensitive device that changes its resistance based on the intensity of light falling on it. When light increases, its resistance decreases; when light decreases, resistance increases — making it a perfect component for light detection and automatic control applications.

This LDR is widely used in Arduino, Raspberry Pi, ESP32, and NodeMCU projects for detecting day/night or measuring light intensity. It is compact, reliable, and easy to interface in various electronics and DIY circuits.

Typical applications include automatic street lights, light-following robots, solar tracking systems, and smart lighting systems.

🧠 Features:

• Compact 5mm light-dependent resistor

• Changes resistance with varying light intensity

• Simple two-pin interface

• Ideal for low-cost light detection and automation projects

• Compatible with Arduino, ESP32, Raspberry Pi, and microcontroller circuits

• Highly sensitive and durable

📦 Applications:

• Automatic streetlight and lamp control

• Light/dark detection circuits

• Solar tracking and energy-saving systems

• Light-following robots

• IoT-based smart lighting