Is this the most important component in the modern smart home? I'm not sure if I can commit to that, but it is certainly important, it's also cheap and easy to install, and will make creating automations a breeze. We are going to check out the humble reed switch, how they work, install one and make some automations in Home Assistant using some on the great new features released in version 0.113 including run mode, chooser and repeat features all through the GUI.
This is part 1 of 2 and includes the following helpful information(i hope)
00:55 - Reed switches in a Garage Door setup connected to a Sonoff SV
01:52 - Exactly how reed switches work including series operation
05:07 - What they are connected too that makes them useful
08:37 - 5 cents on wireless reed switches
10:00 - Installation of a reed switch in a standard door frame
10:37 - A safe DIY project
16:03 - Connecting the sensor to a QuinLED board because of connivence
18:00 - Very good tip for Tradies x 2....... Wait for it
19:25 - Setup the new magnetic reed switch as an sensor in ESPhome
24:10- Everyone struggles some times, it's those question marks!!!

PART 2 - Contains the Home Assistant Automations related to Magnetic Reed Switches

Thanks for watching!!!
I appreciate all your support and comments!!

BTW
The soldering iron is new and for AU$45 really good value and it works really good, so far the power supply it came with is not so good so you might need to get a better one, it is the KSGER T12 Soldering Station.