Using the Raspberry Pi to control AC electric power | TechNotes
RASPBERRY PI – All About controlling Relay Boards for Home Automation - YouTube
waveshare Raspberry Pi Expansion Board Power Relay Module for Raspberry Pi A+/B+/2B/3B/3B+ to Control High Voltage/high Current : Amazon.ca: Electronics
Set Up Raspberry Pi Home Automation
XYGStudy Raspberry Pi Expansion Board Power Relay Module for Raspberry Pi 4 3 2 Model B B+ A+ - Newegg.com