Home Projects Motor, light and power control Dark Sensitive Switch


Dark Sensitive Switch
author: Rajkumar Sharma






Dark Sensitive Switch is a simple project which operates a relay when the light falling on the LDR goes below a set point.

  • Input - 12 V @ 55 mA

  • Relay output - NC-C-NO

  • Onboard preset to set the level

  • Power-On LED indicator

  • Relay On LED indicator

  • Power Battery Terminal (PBT) for easy relay output connection

  • Four mounting holes of 3.2 mm each

  • PCB dimensions 44 mm x 49 mm



Parts List





Download this circuit in PDF



120x90 spot



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