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USES:
Light intensity detection, the light brightness sensor, directional, light source, in front of the sensor’s only used to find the light effect is better
The module features:
1, you can test the brightness of the surrounding environment and light intensity (compared with photosensitive resistance, better direction, can sense the fixed direction of light source)
2 the sensitivity adjustable digital potentiometer to adjust (blue)
3 working voltage of 3.3 V to 5 V
4 output form: DO digital switch output (0 and 1) and AO analog voltage output
5 a fixed bolt hole, convenient installation
6 small board PCB size: 3.2 cm * 1.4 cm
Directions for use
1 photosensitive diode module light intensity is the most sensitive to the environment, are commonly used to detect the brightness of the surrounding environment and light is strong, in most cases can be common with the photosensitive resistance sensor module, the difference is that the photosensitive diode module directional well, can sense the fixed direction of light source.
2 module or the condition of light intensity reach setting threshold, the DO output high level, when the environment light intensity more than set threshold, module D0 output low level;
3 small plate digital output D0 can be attached directly to the single chip microcomputer, through single chip microcomputer to detect the high and low level, thus to detect the environment light intensity change;
4 small plate digital output DO can directly drive our relay module, which can form a photoelectric switch;

5 small plate analog output AO can and our AD module, through the AD conversion, can obtain more accurate values of environmental light