Photosensitive Sensor Module

Light intensity detection, light intensity sensor, smart car light-finding module

Module Features
1. Employs a sensitive photoresistor sensor
2. Comparator output, clean signal, good waveform, strong driving capability exceeding 15mA.
3. Equipped with an adjustable potentiometer to adjust the brightness of the detected light.
4. Operating voltage: 3.3V-5V
5. Output format: DO digital switch output (0 and 1) and AO analog voltage output
6. Equipped with mounting bolt holes for easy installation.
7. Small PCB size: 3.2cm x 1.4cm
8. Uses a wide-voltage LM393 comparator.

Module Usage Instructions
1. The photoresistor module is most sensitive to ambient light and is generally used to detect the brightness of surrounding light, triggering microcontrollers or relay modules, etc.
2. When the ambient light brightness is below the set threshold, the DO terminal outputs a high level; when the ambient light brightness exceeds the set threshold, the DO terminal outputs a low level.
3. The DO output can be directly connected to a microcontroller to detect high and low levels, thereby detecting changes in ambient light brightness.
4. The DO output can directly drive our relay module, thus forming a light-controlled switch.
5. The small board's analog output AO can be connected to an AD module for more accurate ambient light intensity values through AD conversion.