Today’s home security options are more advanced than ever, offering incredible flexibility to customize your setup with motion sensors ... systems specialize in DIY options.

this DIY motion trigger for a DSLR is a quick and easy build, and probably loads more fun. The BOM on [Jeremy S Cook]’s build is extremely short – just a PIR sensor and an optoisolator ...

The idea here is simple enough: attach a motion sensor to a standard gaming headset (here a MPU-6050 IMU), and use the data from it to virtually “press” keys through USB HID emulation.

The best DIY home security systems are easy to install ... offerings — you get just the hub, one door/window sensor, one motion sensor, and a key fob — but you can choose from a host of ...