PIR sensor case with universal mount (HC-SR501 )

thingiverse

I needed a compact PIR enclosure with a mounting arm that could double as an accessory for other projects too. You can add more connectors if desired or require additional flexibility. There are also openings on the case for adjusting the timing and sensor of the PIR. I utilized 4mm screws for the pivots but added an extra screw point to the base of the enclosure in case you want to use self-tapping screws to attach it to a mounting bracket. I printed the bracket upright with supports, which seemed like the best approach for easy removal of supports afterwards.