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Photosensitive Sensor Module Light Sensor Module For Arduino
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#1552
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Descripción
Using a wide voltage LM393 comparator
With a mouting screw hole, easy to install
Using the sensitive type photosensitive resistance sensor
The comparator output signal clean waveform is good, driving ability, than 15mA
With adjustable potentiometer can adjust the brightness of the light detected
Working voltage: 3.3V-5V
Size(L*W): Approx 1.26 x 0.55 inch/ 3.2cm x 1.4cm
Output: DO digital switch output (0 and 1), AO analog voltage output
Interface Description (4-wire):
VCC: positive power supply 3.3-5V
GND: power supply is negative
DO: TTL switching signal output
AO: analog output
Usage:
This module is sensitive to the light, Usually used for detecting the ambient brightness and light intensity.
When there is no light or the light intensity can not reach the value,DO output is high level.when light intensity over than the value, the module DO output is low level.
The module digital output DO can be directly connected with the microcontroller,use microcontroller detect high or low level, so that can detect the environmental light intensity change.
Can use this board digital output DO port drive relay module directly(our store on sale these relay modules), can also use as a photoelectric switch.
The analog output AO connects with AD module, and it can get more precise light intensity value through the AD converter.
