Here is one simple circuit of a general-purpose white LED security light with Passive Infrared (PIR) Motion sensing mechanism. At the heart of the circuit is a PIR sensor module SB0061. SB0061 is a ...

Circuit diagram of the PIR Motion Sensor Light and Switch based on SB0061 shown here ... As a result, the 12V DPDT relay is energised to power the White LED through current limiting resistor R3. Spare ...