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 ...

There is actually a close relationship between microcontroller technology and home security, since you can use a microcontroller based circuit to help you protect your home. Here is an ultra simple ...

While there are loads of impressive and complex projects here on Hackaday, sometimes it’s the simple ones that really ... it consists of a PIR sensor connected to a NodeMCU microcontroller.

The BOM on [Jeremy S Cook]’s build is extremely short – just a PIR sensor and an optoisolator, with a battery, a plug for the camera’s remote jack, and a 3D-printed bracket. The PIR sensor ...

This idea describes a white- LED (WLED) driver circuit controlled by a simple ambient light sensor (ALS). A typical application would be a brightness control for cell-phone backlighting.