Hello,
I’m a new user and I have almost zero understanding of codes but I am very willing to learn! Please be kind 
Back story: I started my automation journey using echo devices and Alexa routines. I am now doing my best to create automations using HA. I have 2 sensors at the moment, and ordered 3 more to make my life easier, but I still want to use my echo devices’ ultrasound motion sensor - well, because they are readily available and they have been reliable ever since I started using them.
I found a very helpful yaml configuration here but I don’t understand what is which and who and where 
Here’s the link:
I was able to paste the code and when I checked the configuration, it was green! But I don’t have a clue as to why! LOL!
So here are my facts:
- I have a NabuCasa cloud account.
- I have linked it with Alexa.
- The echo device that I’m using for this example is named Lance Echo. It is 5th gen.
- It is connected to the same WiFi with my HA.
- I can access configuration yaml using file editor.
- I know how to copy (CTRL + C) and paste (CTRL + V or CTRL + SHIFT +V) LOL!
What I need help with:
- I can’t seem to find the entity to expose to Alexa or vice versa.
- I’m not sure about the strings(?) that I changed on the configuration. I mean, I changed this:
unique_id: switch.office_echo_ultrasound_motion
friendly_name: "Office Echo Ultrasound Motion
to this:
unique_id: switch.lance_echo_ultrasound_motion
friendly_name: "Lance Echo Ultrasound Motion
- What else did I do wrong?
- What do I do to correct my wrong doings?
I know this has been really lengthy but I need help, please?
Many thanks,
Kris