Once you have your QR Code downloaded and save to your computer from here it is just a matter of deciding what to do with it.
1. Print the code out through a sticker company and stick them on equipment, stations, etc.
Here is an example of a great site to print your QR Codes from if you do not have the option in house - https://www.stickeryou.com/
2. Post the QR Code to any virtual or physical meeting boards.
3. Really, do whatever you want with them! As long as someone can scan the QR code with their smartphones — you can do it!