FEATURES:
 
The most common method for detecting ambient brightness and light intensity is to utilize a photosensitive resistor module that is highly sensitive to light intensity.
When the external ambient light intensity surpasses a certain threshold, the module D0 output is low; when the module light conditions or light intensity approaches the predetermined threshold, the DO port output is high;
The MCU is directly attached to the digital output D0, which detects changes in ambient light intensity by sensing high or low TTL;
The relay module, which may consist of a photoelectric switch, can be directly driven by the digital output module DO;
 
SPECIFICATION:
 
Operating voltage: 3.3V-5V
With fixed bolt hole for easy installation
Small board PCB size: 3cm × 1.6cm
External 3.3V-5V VCC
External GND ground
DO digital output interface, a small plate (0 and 1)
 
PACKAGING LIST:
 
1 x LDR Module