Description

A 3g

use:

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

Module features:

1. Using sensitive photosensitive resistance sensor

2. Comparator output, clean signal, good waveform, strong driving ability, more than 15mA.

3. Equipped with adjustable potentiometer to adjust the brightness of detection light

4. Working voltage 3.3V-5V

5. Output form: DO digital switch output (0 and 1) and AO analog voltage output

6. Equipped with fixing bolt holes for easy installation

7. Small board PCB size: 3.2cm x 1.4cm

8. Use wide voltage LM393 comparator

Module instructions

1. The photoresistor module is the most sensitive to ambient light, and is generally used to detect the brightness of the ambient light, trigger the single-chip microcomputer or relay module, etc.;

2. When the module’s ambient light brightness does not reach the set threshold, the DO terminal outputs a high level; when the external ambient light brightness exceeds the set threshold, the DO terminal outputs a low level;

3. The DO output terminal can be directly connected with the single-chip microcomputer, and the high and low level can be detected by the single-chip microcomputer, thereby detecting the change of the light brightness of the environment;

4. The DO output terminal can directly drive our relay module, which can form a light control switch.

5. The small-board analog output AO can be connected to the AD module, and through AD conversion, a more accurate value of the ambient light intensity can be obtained;