SUNROM ELECTRONICS

Light Sensing Module - LDR

Detects if there is light or dark around, adjustable digital output trigger level, Analog+Digital output

Light Sensing Module - LDR

Sunrom Part# 4589

Available We dispatch same day if ordered by 4PM (excluding holidays), then courier usually takes 2-5 days.
Real Time Availability
Ready Stock: 22 nos.
Factory Leadtime for more quantity: 15 days
Quantity Pricing
Quantity :
Price (Discount%)
1-4 :
Rs.95/- (0%)
5-9 :
Rs.92/- (3%)
10-24 :
Rs.88/- (7%)
25-49 :
Rs.86/- (10%)
50-74 :
Rs.84/- (12%)
75-99 :
Rs.81/- (15%)
100-249 :
Rs.78/- (18%)
250-499 :
Rs.76/- (20%)
500-999 :
Rs.74/- (22%)
1000+ :
Rs.71/- (25%)

Downloads

LM393 Datasheet

Specifications

  • Operating Voltage: 3.3V to 5V DC
  • Operating Current: 15ma
  • Output Digital - 0V to 5V, Adjustable trigger level from preset
  • Output Analog - 0V to 5V based on light falling on the LDR
  • LEDs indicating output and power
  • PCB Size: 3.2cm x 1.4cm
  • LM393 based design

Board Schematic

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Pin details 

  • VCC = 3.3V to 5V DC
  • GND = Ground
  • DO = Digital 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 DO  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 value

 

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