Dark Sensitive switch project based on single BC547 transistor, Relay operates when light that falls on the LDR, goes below a set point. It’s very simple and low cost dark sensitive switch required few components.
PARTS
FEATURES
- Input : 12 VDC @ 55 mA
- Relay output : NC – C – NO
- Onboard preset to set the level
- Power-On LED indicator
- Relay On LED indicator
- Screw terminal connector for easy relay output connection
- Four mounting holes of 3.2 mm each
- PCB dimensions 44 mm x 40 mm
SCHEMATIC
PARTS
PCB
