Hot selling spot 4-pin photoresistor sensor module, light detection photodiode
Product Descriptions：
Purpose:
Light brightness detection, light brightness sensor, intelligent car light seeking module
Module features:
1. Adopting a sensitive photoresistor sensor
2. The comparator output has a clean signal, good waveform, and strong driving capability, exceeding 15mA.
3. Equipped with an adjustable potentiometer to adjust the brightness of the detection light
4. Working voltage 3.3V-5V
5. Output format: DO digital switch output (0 and 1) and AO analog voltage output
6. Equipped with fixed bolt holes for easy installation
7. Small PCB size: 3.2cm x 1.4cm
8. Using a wide voltage LM393 comparator
Module usage instructions
1. The photoresistor module is 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 does not reach 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 terminal can be directly connected to the microcontroller to detect high and low levels, thereby detecting changes in environmental light brightness;
4. The DO output terminal can directly drive the relay module in our store, thus forming a light controlled switch.
5. The analog output AO of the small board can be connected to the AD module, and through AD conversion, a higher value of ambient light intensity can be obtained;
