Barndoor Pir HC-SR501 (sensor movimiento con aletas)

thingiverse

I'm tinkering with the PIR detector's angle, and I want to test how much it affects its sensitivity. To get accurate results, I need to know exactly how small of an angle I can set, so I printed a prototype for testing purposes. This design features four parts that come out in one print, eliminating the need for assembly. If you have a well-calibrated printer, simply printing this will give you a functional PIR detector. However, if your printer needs calibration, you'll need to carefully disassemble it by breaking the hinges to ensure smooth movement.