Jump scares are fun, but how about a jump scare that is fully automated? Even better! This one uses the HalloWing with a PIR motion sensor, servo motor, and speaker to detect victims and drop a creepy rubber bug right in front of them as it hisses terrifyingly!

You can plug these parts right into your HalloWing, code it in CircuitPython, and get to scaring people in no time.


1 x Adafruit HalloWing M0 Express
Skull-shaped ATSAMD21 board w 1.44" 128x128 TFT display
1 x PIR (motion) sensor
Passive Infrared detector
1 x Micro Servo
Tiny 180 degree rotation servo
1 x 5V 2.5A Switching power supply
with 20AWG MicroUSB Cable


In addition to the above parts, you'll need the following:

  • Thin thread or mono-filament fishing line
  • Creepy rubber bug
  • Double stick foam tape
  • Cardstock
  • Cardboard or corrugated plastic for mounting
  • Gaffer's tape

This guide was first published on Sep 29, 2018. It was last updated on Jun 17, 2024.

This page (Overview) was last updated on Mar 08, 2024.

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