Raspberry Pi Halloween Costume Detector

Build a wise cracking skull to MC your Halloween costume party

by Liz Clark

published October 28, 2025, last edited October 31, 2025

posted in Sensors/ Camera Raspberry Pi Internet of Things - IOT Programming/ Python Breakout Boards/ Amplifiers/Sound

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2

New

Intermediate

Project guide

Wiring

Two LEDs are used as a visual indicator that the skulls is recognizing the goblins and ghouls walking by. You'll connect the LED to the broken out GPIO pins on the speaker bonnet.

Solder a 220Ω resistors to each of the anodes on the LEDs. The anode is the longer leg of the two tegs of the LED.

Solder wires to the cathodes of each LED. The cathode is the shorter leg of the LED. Solder wires to the other end of the resistors on each LED.

Cover the exposed LED connections with heat shrink.

Gently heat the heat shrink.

Solder the cathode wires from the LEDs to GND on the speaker bonnet. Solder the anode wires from the LEDs to GPIO 5 on the speaker bonnet.

Page last edited October 28, 2025

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