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Light Dependent Resistor

4.5 mm LDR – Light Dependent Resistor

Original price was: ₹10.00.Current price is: ₹6.00.

  • LDR(Light Dependent Resistor) also known as photoresistor is a resistor whose resistance varies with the amount of light falling on it. This is a large size LDR with a size of 4.5 mm.
  • To use, connect one side of the photo cell (either one, its symmetric) to power (for example 5V) and the other side to your microcontroller’s analog input pin. Then connect a 10K pull-down resistor from that analog pin to ground. The voltage on the pin will be 2.5V or higher when its light out and near ground when its dark.
  • This sensor can be used for making a light sensor, colour sensor, object sensor, line sensor, etc.

500 in stock

Quantity Discount (%) Price
1 - 199 — ₹6.00
200 - 499 16.67 % ₹5.00
500+ 25 % ₹4.50

Analog Applications:

  • Camera exposure control
  • Auto slide focus – dual cell
  • Photocopy machines – the density of the toner
  • Colorimetric test Equipment
  • Densitometer
  • Electronics scales – dual cell
  • Automatic gain control – modulated light source
  • Automated rearview mirror

 

Digital Applications:

  • Automatic headlight dimmer
  • Nightlight control
  • Oil burner flame out
  • Streetlight control
  • Absence/presence (beam breaker)
  • Position sensor

 

Other applications:

  • Camera automatic photometry
  • Electronic toy
  • Industrial control
  • Light control
  • Light control lamp
  • Photoelectric control
  • Switch

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    5 mm LDR – Light Dependent Resistor

     Original price was: ₹10.00.Current price is: ₹6.00.
    • LDR(Light Dependent Resistor) also known as photoresistor is a resistor whose resistance varies with the amount of light falling on it. This is a large size LDR with a size of 5 mm.
    • To use, connect one side of the photo cell (either one, its symmetric) to power (for example 5V) and the other side to your microcontroller’s analog input pin. Then connect a 10K pull-down resistor from that analog pin to ground. The voltage on the pin will be 2.5V or higher when its light out and near ground when its dark.
    • This sensor can be used for making a light sensor, colour sensor, object sensor, line sensor, etc.
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