Step 1:
You can find the MAC address using the Google Home app > tap on your device icon > tap on the gear cog icon top right > scroll down to the bottom of that page.
With your MAC address, register the device on this form: http://knoxaccess.knox.edu/registration/GameRegister.html
Step 2: Setup and connect to KnoxTronics. The password is AsDfGW2481632
Step 3: Connect your phone to KnoxTronics as well.
Step 4: Follow the prompts on your google home app.