Home > Circuit Blox > Light Sensor
UPDATED:.20:56 23 August 2014
FUNCTION BLOCK
FUNCTION

Produces an output voltage proportional to the amount of light on the sensor

  • The brighter it gets, the higher the voltage.
  • The Blok can be connected to get the reverse effect.

Supply Voltage (+V): 3 to 18 volts

CIRCUIT DETAILS
PCB LAYOUT

PCB: 25mm x 25mm

Assembly Instructions

+V
Vout
0V

NOTES:

  • To adjust the out voltage for a particular light level, adjust the preset VR1 with a small screwdriver.
  • To convert this to a darkness sensor (output voltage rises as it gets darker), connect the supply back to front - (the positive supply to 0v and the negative to +V). Never do this otherwise, unless specifically instructed to do so!

APPLICATIONS:

  • Light level monitoring
  • Environment controllers
  • Automatic night light
  • Light beam alarm
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