python script to play a spooky sound when a PIR sensor triggers via GPIO
Fun way to scare someone at haloween or just anytime they walk into a room!!
Uses a PIR sensor and a raspberry pi. When the PIR detects someone it plays a wav file, you can chose from a number of random files or just one. This has been put together using lots of different sites online. Wav files and Ogg files work but i havent been able to use MP3s so use an online tool to convert them.
I used a set of cheap-o USB speakers, you will need to enable them by editing the alsa.conf.
sudo nano /usr/share/alsa/alsa.conf
Find -
defaults.ctl.card 0
defaults.pcm.card 0
Change both “0” to “1” and then save the file.
Pre-requisites:
sudo apt-get install python-pip,
sudo pip install gpiozero,
sudo apt-get install python-pygame
To wire the PIR sensor:
VCC to 5v on the Pi.
GND to GND.
Signal Pin to GPIO 18