Description
A light detection sensor module based on an LDR (Light Dependent Resistor) and LM393 comparator, designed for use with microcontrollers like Arduino, PIC, and Raspberry Pi.
This module outputs a digital signal that changes based on ambient light, allowing easy integration into automation, light-sensitive projects, and DIY electronics builds.
- Product: LDR Light Detection Sensor Module
- Type: Digital Output Light Sensor with Adjustable Sensitivity
- Quantity: 1 Module
- Light-dependent resistor sensor module
- Digital output based on ambient light levels
- Adjustable sensitivity via onboard potentiometer
- Compact size and low power operation
- Suitable for Arduino, PIC, ARM, Raspberry Pi
Specifications:
- Operating Voltage: 3.3V to 5V
- Comparator: LM393
- Output: DO – Digital Output (0 = No Light, 1 = Light Detected)
- Dimensions: 32mm x 14mm
What’s Included:
- 1 x LDR Light Sensor Module with Adjustable Sensitivity
Great For:
- DIY electronics and Arduino projects
- Light-activated relays or alarms
- Daylight detection systems
- Smart lighting automation
- Basic photoelectric switching applications
Usage Tips:
- Connect to microcontroller digital input pin for light detection
- Use DO pin to trigger a relay or digital switch
- Adjust the onboard potentiometer to set light threshold
- Mount facing ambient light source for best performance





