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 ...
You’ve got to see pictures to appreciate the simple ingenuity behind this lamp, which took three years of research to make. A few years ago, when LEDs first became a viable lighting element, designers ...
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