LDR Sensor Module
A practical and adjustable light detection sensor module for diverse applications
The LDR Sensor Module is designed to detect the presence and measure the intensity of light. Its output goes high in the presence of light and low in its absence. The sensitivity of the signal detection can be easily adjusted using the in-build potentiometer.
- Application: Can detect ambient brightness and light intensity
- Sensitivity Adjustment: via blue digital potentiometer
- Operating Voltage: 3.3V-5V
- Output Type: Analog voltage output -A0, Digital switching outputs -D0
- Installation: with fixed bolt hole
- PCB Size: 3cm * 1.6cm
- Indicators: Power(red) & digital switch output(green)
- Comparator Chip: LM393, stable
Main Features
- Capable of detecting ambient brightness and light intensity
- Has adjustable sensitivity for diverse usage
- Equipped with power and output indicators
- Designed with fixed bolt hole for easy installation
The module is most sensitive to environmental light intensity, typically used in applications requiring the detection of ambient brightness and light intensity. When light conditions or intensity reach a set threshold, the DO port outputs high. Conversely, when the external ambient light intensity exceeds a set threshold, the module's D0 output goes low.
- External Power Supply: 3.3V-5V VCC
- GND: External GND
- D0: digital output interface, a small plate (0 and 1)
- AO: small board analog output interface
The LDR Sensor Module can directly drive the relay module, forming a photoelectric switch. When connected to an AD converter through the analog output module AO and AD modules, a more accurate light intensity value can be obtained.