Photocell Light Sensor Module

Features:

• Using sensitive photosensitive resistance sensor
• The comparator output signal is clean, good waveform, driving ability, more than 15mA
• With adjustable potentiometer to adjust the brightness of the light detection
• The working voltage is 3.3V-5V
• The output form: DO digital switching outputs (0 and 1) and AO analog voltage output
• A fixed bolt holes for easy installation
• Using a wide voltage LM393 comparator
• PCB Size: 3.1cm x 1.4cm
  

Interface Pin:

• VCC: positive power supply 3.3-5V
• GND: power supply is negative
• DO: TTL switching signal output
• AO: analog output

How to use:

• Photosensitive resistor module most sensitive to environmental light intensity is generally used to detect the ambient brightness and light intensity
• Module light conditions or light intensity reach the set threshold, DO port output high, when the external ambient light intensity exceeds a set threshold, the module D0 output low
• Digital output D0 directly connected to the MCU, and detect high or low TTL, thereby detecting ambient light intensity changes
• Digital output module D0 can directly drive the relay module, which can be composed of a photoelectric switch
• Analog output module AO and AD modules can be connected through the AD converter, you can get a more accurate light intensity values