Raspberry Pi Automation #1: Mains Relay HAT

Raspberry Pi home automation tutorial using a mains relay HAT from Electronics-Salon to control three light bulbs, and potentially other mains or high power DC devices. Video includes Python 3 code for bulb sequencing and timer control. WARNING: mains electricity is dangerous. Do not attempt what is shown in this video unless you have prior experience working with mains electricity and understand how to take appropriate safety measures. In particular, when working with mains electricity, ensure that your circuit is connected to an residual current device (RCD) or other form of circuit breaker. All code and wiring diagrams are available here: http://www.explainingcomputers.com/pi... The relay HAT used in the video can be found on Amazon.com here: https://amzn.to/2Yjgc2M and on Amazon.co.uk here: https://www.amazon.co.uk/dp/B07K796T9... (affilate links). An apparently identical relay HAT unit, branded to another manufacturer, is on Amazon.de here: https://www.amazon.de/dp/B01FZ7XLJ4/ If pursuing home automation projects, you may find useful my video “Raspberry Pi: Using GPIO Inputs”:    • Raspberry Pi: Using GPIO Inputs   And this video on using MotionEyeOS to set up a Raspberry Pi network camera:    • Raspberry Pi MotionEyeOS Network Camera   My review of the Raspberry Pi 3B+ shown in the video is also here:    • Raspberry Pi 3 Model B+   More videos on computing and related topics can be found on the ExplainingComputers channel at:    / explainingcomputers   You may also like my other channel, ExplainingTheFuture, at:    / explainingthefuture   #RaspberryPi #HomeAutomation #Automation #ExplainingComputers