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Halloween spider trap — image 1
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Halloween spider trap

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a box that opens automatically when someone stands under it and lets spiders rain down

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a box that opens automatically when someone stands under it and lets spiders rain down.

The design is a little bit crude, but it works ;).

You need spiders like these:

https://www.printables.com/model/306045-black-house-spider-for-halloween

an arduino nano or similar (program is also attached)

a small breadboard

an ultrasonic distance sensor

a sg90 servomotor

a battery powersupply for the breadboard

and some jumper wires

If you want to use glow in the dark filament for the spiders, what I would recommend, you need one of these black light torches to charge the spiders:

https://www.amazon.de/gp/product/B00GU55270/ref=ppx_yo_dt_b_search_asin_image?ie=UTF8&psc=1

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